BPSC Prelims (Combined Competitive Exam)
69th BPSC Prelims 2023: Previous-Year Questions
106 questions from this paper, sorted by subject, with their options. Each one opens to its answer and explanation.
Modern History 17 questions
Match List–I with List–II:
List—I List—II (Explorer) (Birthplace) A. Christopher Columbus 1. Portugal B. Jacques Cartier 2. United Kingdom C. Sir Francis Drake 3. Italy D. Ferdinand Magellan 4. France Select the correct answer using the codes given below.
- A3 4 2 1
- B1 2 4 3
- C3 4 1 2
- D1 4 2 3
Which treaty was signed after the Battle of Buxar?
- AThe Treaty of Allahabad
- BThe Treaty of Sugauli
- CThe Treaty of Bassein
- DThe Treaty of Salbai
Lord Lytton is not associated with which of the following?
- AThe Strachey Commission
- BThe Arms Act
- CThe Vernacular Press Act
- DThe Ilbert Bill
Which of the following statements about Lord Mayo’s Resolution of 1870 are correct?
- 1. It was the first step that bifurcated Central and Provincial finances.
- 2. Provincial Governments were empowered to administer certain services.
- 3. It attempted to rectify existing imparity.
- 4. It focused on the actual needs of the Provinces.
Select the correct answer using the codes given below.
- AOnly 1 and 2
- BOnly 1, 3 and 4
- COnly 2, 3 and 4
- D1, 2, 3 and 4
Which of the following were the reasons for the failure of the Revolt of 1857?
- 1. The military superiority of the British
- 2. The rebels did not have a unified programme and ideology
- 3. There was a lack of support from all the sections of society
Select the correct answer using the codes given below.
- AOnly 1 and 2
- BOnly 2 and 3
- CAll of the above
- DNone of the above
Consider the following statements regarding Wood’s Dispatch of 1854:
- 1. It recommended English as the medium of instruction for higher studies.
- 2. It laid stress on female education and vocational training.
Which of the above statements is/are correct?
- AOnly 1
- BOnly 2
- CBoth 1 and 2
- DNeither 1 nor 2
Which of the following statements about the Vernacular Press Act is/are correct?
- 1. It was enacted by Lord Lytton.
- 2. It came to be known as a ‘Gagging Act’.
- 3. The Act was repealed by Lord Ripon.
Select the correct answer using the codes given below.
- AOnly 1 and 2
- BOnly 2 and 3
- COnly 1
- D1, 2 and 3
Match List-I with List-II:
List-I List-II A. Servants of India Society 1. Debendranath Tagore B. Tattwabodhini Sabha 2. Gopal Krishna Gokhale C. Atmiya Sabha 3. Ram Mohan Roy 4. Keshab Chandra Sen Select the correct answer using the codes given below.
- A2 1 3
- B2 4 3
- C1 2 3
- D1 4 3
“The Indian National Congress was founded on the basis of Safety Valve Theory, to protect the British Government from threats.” Which leader said that?
- AC. Rajagopalachari
- BLala Lajpat Rai
- CBipin Chandra Pal
- DNone of them
In which of the following Indian National Congress Sessions, the resolutions related to the Fundamental Rights were passed for the first time?
- ASurat Session—1907
- BGaya Session—1922
- CKarachi Session—1931
- DNone of the above
In response to the mass agitation of the Champaran Movement, the British Government took which step to address the issue?
- AAppointed Mahatma Gandhi as the Governor of Champaran
- BEnforced strict curfew and imposed Martial Law in the region
- CInstituted the Champaran Agrarian Committee
- DDeclared Champaran as an independent State
In which of the following movements did Mahatma Gandhi make the first use of the hunger strike as a weapon?
- ANon-Cooperation Movement
- BBardoli Satyagraha
- CAhmedabad Strike
- DRowlatt Satyagraha
Who among the following was not the member of the Cabinet Mission?
- AP. Lawrence
- BA. V. Alexander
- CJ. Andrew
- DNone of them
Which of the following statements is correct regarding Queen Elizabeth II of the United Kingdom?
- AShe reigned for 70 years and died at the age of 96.
- BShe reigned for 68 years and died at the age of 94.
- CShe ruled for 72 years and died at the age of 92.
- DShe ruled for 66 years and died at the age of 90.
Consider the following events during India’s Freedom Struggle:
- 1. Home Rule Movement
- 2. Surat Split
- 3. Kheda Satyagraha
- 4. Minto-Morley Reforms
Which of the following is the correct chronological order of the events given above?
- A1–3–2–4
- B2–4–1–3
- C1–4–2–3
- D2–3–1–4
Ambabai, a woman freedom fighter, belonged to which of the following states of India?
- AKerala
- BAndhra Pradesh
- CKarnataka
- DMadhya Pradesh
In which country is the three-day Thadingyut Festival celebrated?
- AChile
- BNepal
- CGermany
- DMyanmar
Ancient History 11 questions
Which of the following animals was not known to the people of the Indus Valley Civilization?
- ABull
- BHorse
- CElephant
- DNone of the above
Which city served as the capital of the ancient kingdom of Magadha during the early Vedic period?
- APataliputra
- BRajagriha
- CChampa
- DVaishali
Nathpanthis, Siddhas and Yogis made devotional religion popular in
- ANorthern India
- BSouthern India
- CEastern India
- DWestern India
Consider the following statements : 1. Fa-Hien was a Chinese pilgrim who visited India during the reign of Harsha. 2. Hiuen Tsang was a Chinese Buddhist monk who visited India during the reign of Chandragupta II. Which of the above statements is/are correct?
- AOnly 1
- BOnly 2
- CBoth 1 and 2
- DNone of the above
In Indian art, the construction of ‘Stupa’, ‘Chaitya’ and ‘Vihara’ is related to which of the following?
- AAjivika sect
- BVaishnava sect
- CBuddhism
- DShaiva sect
The painting of ‘Bodhisattva Padmapani’ is located at
- ABagh
- BEllora
- CAjanta
- DBadami
According to Chinese source, Meghavarman, the ruler of Sri Lanka, sent a missionary to which of the following Gupta Kings for permission to build a Buddhist temple at Gaya?
- AChandragupta I
- BSamudragupta
- CChandragupta II
- DNone of them
Match List-I with List-II:
List-I List-II A. Charaka 1. Mathematics B. Brahmagupta 2. Medicine C. Varahamihira 3. Playwright D. Vishakhadatta 4. Astrology Select the correct answer using the codes given below (in the order A B C D):
- A2 1 4 3
- B1 2 3 4
- C3 2 4 1
- D1 4 3 2
Nitisara, an early book of politics, was written by
- AKautilya
- BKamandaka
- CCharaka
- DNone of them
Consider the following statements regarding the Vikramshila University in Bihar:
- 1. It was located in the present-day Banka district of Bihar.
- 2. It was established by King Gopala I of the Pala dynasty.
- 3. The ‘Vajrayana’ sect of Buddhism flourished here.
- 4. Other subjects like Astronomy, Logic, Law, Grammar and Philosophy were also taught here.
Which of the above statements are incorrect?
- A2 and 3
- B1 and 4
- C1 and 2
- DNone of the above
The Maithili language was started to develop during the reign of which of the following?
- AChero dynasty
- BOiniwar dynasty
- CKarnat dynasty
- DPithipatis
Medieval History 6 questions
Who among the following introduced the Persian festival Nouruz in India?
- AFiroz Shah Tughlaq
- BAlauddin Khilji
- CBalban
- DIltutmish
Nathpanthis, Siddhas and Yogis made devotional religion popular in
- ANorthern India
- BSouthern India
- CEastern India
- DWestern India
Consider the following statements : The arrival of Babur into India led to the
1. introduction of gunpowder in the subcontinent
2. introduction of arch and dome in the region’s architecture
3. establishment of the Timurid dynasty in the region
4. introduction of cannons in warfare
Which of the above statements are correct?
- AOnly 1 and 2
- B1, 2 and 3
- C3 and 4
- DNone of the above
Futuhat-i-Alamgiri was written by
- AIshwardas Nagar
- BBhimsen
- CHaridas
- DNone of them
Which among the following ports was called Bab-ul-Makkah (Gate of Makkah) during the Mughal period?
- ACalicut
- BSurat
- CCambay
- DBroach
‘Ashtapradhan’ was a Council of Ministers
- AIn the Gupta administration
- BIn the Chola administration
- CIn the Maratha administration
- DIn the Vijayanagara administration
Bihar Special GK 13 questions
When was Bihar first separated from the Bengal Presidency under the British-rule in India?
- A1912
- B1936
- C1947
- DNone of the above
The cook from Bihar who saved Mahatma Gandhi’s life from a murder attempt by food poisoning in 1917 was
- AMuzaffar Ahmad
- BBatak Miyan
- CMir Bakawal
- DNone of them
During 1937-1938, the Bakasht Movement in Bihar was organized by whom?
- APir Ali Khan
- BSwami Dayanand Saraswati
- CJayaprakash Narayan
- DSwami Sahajanand Saraswati
In 1942, Bihar's leaders made significant contributions to the Quit India Movement. Which prominent leader from Bihar was known as 'Bihar Kesari' and actively participated in the Quit India Movement?
- ARam Manohar Lohia
- BDr. Rajendra Prasad
- CShri Krishna Singh
- DAnugrah Narayan Sinha
The geographical structure of Bihar is made up of rock systems. Match the rock systems with their descriptions—
Rock system Description A. Dharwar rock system 1. Formed by rapid deposition of sediments by Himalayan and Peninsular rivers B. Vindhyan rock system 2. Can be found in West Champaran district C. Quaternary rock system 3. A part of the oldest Archean rock system D. Tertiary rock system 4. Sandstone, limestone, dolomite, quartzite and shale are the main components of this rock system Use the code given below and choose the correct answer (in the order A B C D):
- A4 2 3 1
- B3 4 1 2
- C1 3 2 4
- D2 3 4 1
Gold is found in which of the following districts of Bihar?
- AMunger
- BSaran
- CSiwan
- DJamui
What is the present population of Gaya district of Bihar?
- A234000
- B598000
- C320000
- D780000
Which of the following National Parks / Wildlife Sanctuaries are in Bihar?
- 1. Valmiki National Park
- 2. Dudhwa National Park
- 3. Gajner Wildlife Sanctuary
- 4. Bhimbandh Wildlife Sanctuary
Choose the correct answer using the code given below.
- A2 and 4
- B1 and 4
- C2 and 3
- D1 and 3
The Triveni Canal has been constructed on which of the following rivers?
- AMayurakshi
- BKosi
- CSon
- DGandak
The other name of the Gandak River is—
- APunpun
- BBudhi Gandak
- CMahananda
- DNarayani
The average height of the Kosi Plain above mean sea level is—
- A30 metres
- B300 metres
- C150 metres
- DNone of these
In the context of Indian handicrafts, what is ‘Sujini’ in Bihar?
- AA type of glassware
- BA metal craft
- CA type of embroidery
- DA type of clay pottery
Bihar Government has planned to make Bihar State ‘pollution-free’ by reducing carbon emissions by which year?
- A2047
- B2022
- C2024
- D2030
Indian Polity 13 questions
The concept of the Directive Principles of State Policy in the Indian Constitution was borrowed from the Constitution of
- AEngland
- BSwitzerland
- CIreland
- DNone of the above
From which country, the Indian Constitution has taken reference for the idea of the Fundamental Rights?
- AIreland
- BUnited States of America
- CUnited Kingdom
- DCanada
Untouchability is abolished by which Article of the Indian Constitution?
- AArticle 14
- BArticle 21
- CArticle 17
- DArticle 19
Under which Article(s), the Speaker can allow any member of the House to speak in his/her mother tongue?
- AArticle 110 (1)
- BArticle 122 (2)
- CArticle 120 (1)
- DBoth
The Fifth Schedule deals with the governance and protection of the interests of which specific group of people?
- AScheduled Castes
- BReligious Minorities
- CScheduled Tribes
- DLinguistic Minorities
In which case did the Supreme Court of India give for the first time the doctrine of ‘basic structure’ of the Constitution?
- AGolaknath vs. State of Punjab
- BKesavananda Bharati vs. State of Kerala
- CMinerva Mills vs. Union of India
- DBoth
Sikkim became a full-fledged state of the Indian Union -
- Ain 1976
- Bin 1974
- Cin 1975
- DNone of the above
Consider the following statements about the collegium system :
- 1. The Supreme Court collegium is a five-member body, which is headed by the incumbent Chief Justice of India (CJI) and comprises four other seniormost Judges of the Court at that time.
- 2. The Parliament by law has evolved the collegium system.
- 3. The Judges of the Supreme Court and High Courts are appointed only through the collegium system.
- 4. The collegium system was introduced in the year 1993 by Justice P. N. Bhagwati in the landmark First Judges Case.
Which of the above statements is/are correct?
- AOnly 1
- B1 and 2
- C3 and 4
- D1 and 3
The authority to determine the number of Judges in a High Court rests with which of the following entities?
- AThe President
- BThe Chief Minister of the State
- CThe Prime Minister
- DThe Parliament
Which of the following is/are the consequence(s) of invoking Article 360, declaration of a financial emergency?
1. The President may order the States to reduce the salaries and allowances of all or any class of employees serving in connection with the State affairs.
2. Money Bills or other financial bills passed by the State Legislature are not required to be reserved for the consideration of the President.
3. The President can issue directions for the reduction of salaries and allowances of all or any class of employees serving in connection with the affairs of the Union, including the Judges of the Supreme Court and the High Courts.
4. Money Bills or other financial bills are to be reserved for the consideration of the President after they are passed by the Legislature of the State. Select the correct answer using the codes given below.- A1, 3 and 4 only
- BOnly 2
- C1 and 2 only
- DAll of the above
Match List-I (National Political Parties of India) with List-II (years of their formation):
List-I (Political party) List-II (Year of formation) A. Communist Party of India (Marxist) (CPI-M) 1. 1964 B. Communist Party of India 2. 1998 C. Bahujan Samaj Party 3. 1925 D. All India Trinamool Congress 4. 1984 Select the correct answer using the codes given below (in the order A B C D):
- A4 3 2 1
- B1 3 4 2
- C4 1 2 3
- DMore than one of the above
- ENone of the above
Consider the following statements regarding the 42nd Amendment to the Constitution of India:
- 1. It added three words to the Preamble—‘Socialist’, ‘Secular’ and ‘Integrity’.
- 2. It added eight Fundamental Duties to the Constitution.
- 3. It added new Directive Principles, i.e., Article 39A, Article 43A and Article 47.
- 4. It granted power to the President, in consultation with the Election Commission, to disqualify members of the State Legislatures.
Which of the above statements are incorrect?
- A1 and 2
- B3 and 4
- C2 and 3
- D1 and 4
The specifications required for a community to be declared as a Scheduled Tribe are
- 1. Indications of primitive traits
- 2. Distinctive culture
- 3. Shyness of contact with the community at large
- 4. Backwardness and geographical isolation
Which of the above are correct?
- AOnly 1 and 2
- BOnly 2, 3 and 4
- COnly 1, 3 and 4
- DAll of the above
Geography 22 questions
On which plateau do the Tropic of Cancer and the Indian Standard Time Line intersect each other?
- ABundelkhand
- BBaghelkhand
- CMalwa
- DNone of the above
Which district of Uttarakhand is not situated along the Tibet boundary?
- AUttarkashi
- BChamoli
- CAlmora
- DNone of the above
The river Subarnarekha originates near which of the following villages?
- AOrmanjhi
- BMandar
- CHehal
- DNagri
Which of the following statements is correct?
- ANatural gas is found in Dharwar rock formation
- BMica is found in Koderma
- CCuddapah series is famous for diamonds
- DPetroleum reserves are found in Aravalli hills
In the universe, what are pulsars?
- ARadio waves emitted by a star
- BA group of stars
- CRotating neutron stars
- DAn exploding star
How many latitudes are there on the globe drawn at 1 degree interval?
- A180
- B178
- C179
- DNone of the above
What is the local time of Thimphu (Bhutan) located at 90° East longitude when the time at Greenwich (0°) is 12:00 noon?
- A6:00 p.m
- B4:00 p.m
- C7:00 p.m
- D6:00 a.m
The theory that states “pieces of the Earth’s crust are in constant, slow motion driven by movement in the mantle” is called
- Athe theory of continental drift
- Bthe theory of Pangaea
- Cthe theory of plate tectonics
- Dthe theory of plate boundaries
The emirate states of U.A.E. are -
- ASharjah, Abu Dhabi, Ajman, Fujairah, Dubai, Bahrain, Kuwait
- BAbu Dhabi, Dubai, Sharjah, Ajman, Umm Al-Quwain, Fujairah, Ras Al Khaimah
- CDubai, Sharjah, Ajman, Jeddah, Kuwait, Bahrain, Umm Al-Quwain
- DUmm Al-Quwain, Fujairah, Ras Al Khaimah, Riyadh, Dammam, Taif, Dubai
Where does the El Niño current flow?
- AThe Pacific Ocean
- BThe Indian Ocean
- CThe Bay of Bengal
- DMore than one of the above
Consider the following statements : 1. Lake Victoria is the third largest freshwater lake in the world by surface area. 2. It is one of the great lakes of Africa. 3. It is bordered by four countries—Tanzania, Uganda, Rwanda and Kenya. 4. The only outflow from Lake Victoria is the Nile River, which exits the lake near Jinja, Uganda. Which of the above statements are incorrect?
- A1 and 2
- B2 and 4
- C3 and 4
- D1 and 3
Assertion (A) : Rich placer deposits of gold are found on the coast of Ghana and gold veins are found in Brazil. Reason (R) : At one time these continents were joined together along the Atlantic coast. Choose the correct answer.
- ABoth (A) and (R) are correct and (R) is the correct explanation of (A)
- BBoth (A) and (R) are correct; but (R) is not the correct explanation of (A)
- C(A) is wrong but (R) is correct
- D(A) is correct but (R) is incorrect
Match List-I with List-II — List—I List—II (Space Mission) (Exploration) A. Cassini Huygens 1. Jupiter B. Juno 2. Saturn and its rings C. Artemis 3. Venus D. VERITAS 4. Human Spaceflight— Moon to Mars Choose the correct answer using the code given below. A B C D
- A3 1 2 4
- B2 1 4 3
- C3 1 4 2
- D2 3 4 1
The process that continually adds new crust is
- Asubduction
- Bearthquake
- Cseafloor spreading
- Dconvection
Match List-I with List-II— List-I List-II (Shoes/Fashion accessories) (Description) A. Beret 1. A type of men’s shoe B. Stilettos 2. A type of sunglasses C. Aviators 3. A type of cap/hat D. Chignon 4. A type of women’s shoe E. Brogue 5. A type of hairstyle Choose the correct answer using the code given below. A B C D E
- A1 2 3 4 5
- B3 2 1 4 5
- C3 4 2 5 1
- D5 3 2 4 1
The first man who set foot on the Moon was—
- ALeonov
- BNeil Armstrong
- CMichael Collins
- DJames Van Allen
- EMore than one of the above/None of the above
Which one of the following is one of the world’s richest regions in terms of marine biodiversity, which includes estuaries, sea coasts, near-shore coastal forests, seagrass, coral reefs, salt marshes and mangroves, along with twenty-one islands?
- ANilgiri Biosphere Reserve
- BGulf of Mannar Biosphere Reserve
- CNanda Devi Biosphere Reserve
- DSundarban Biosphere Reserve
- ENone of the above
With reference to the “Gangetic Dolphin”, consider the following statements - 1. The Ganga river dolphin has been categorized as an Endangered animal under the IUCN Red List. 2. It has no crystalline eye lens, which makes it effectively blind. 3. It uses echolocation to move and to hunt. 4. It has been recognized as India’s National Aquatic Animal. Which of the above statements are correct?
- AOnly 1, 3 and 4
- BOnly 1, 2 and 4
- COnly 2, 3 and 4
- DAll of the above
Ten captive-bred Asian giant tortoises (Manouria emys), one of the largest tortoise species in mainland Asia, were recently released in which national park of India?
- AKanchenjunga National Park
- BNtangki National Park
- CPeriyar National Park
- DPench National Park
Regarding Heat Wave, consider the following statements— 1. If the maximum temperature of a plain area reaches at least 30°C or more, it is considered a heat wave. 2. If the maximum temperature of a hilly area reaches at least 40°C or more, it is considered a heat wave. Which of the above statement(s) is/are correct?
- ANeither 1 nor 2
- BBoth 1 and 2
- COnly 1
- DOnly 2
The much-discussed “Lisbon Declaration” is related to the conservation of which entity?
- AFreshwater glaciers
- BAir
- CMountains
- DOceans
Which state government launched the State-Level Committee for Vulture Conservation (SLCVC) for vulture conservation, as proposed under the National Action Plan for vulture conservation in India?
- AMeghalaya
- BTamil Nadu
- CSikkim
- DAssam
Biology 9 questions
What is the expanded form of the term ‘mRNA’ that has been widely discussed since the beginning of the pandemic?
- AMessenger Ribonucleic Acid
- BMutant Ribonucleic Acid
- CModified Ribonucleic Acid
- DMnemonic Ribonucleic Acid
Which of the following are not the tastes of the tongue?
1. Sweet 2. Bitter 3. Salty 4. Spicy 5. Umami 6. Sour 7. Pungent Select the correct answer using the codes given below.- A2, 5 and 7
- B1, 3 and 4
- C4 and 7
- D3 and 6
Input and output nerves meet at
- Aliver
- Bcentral nervous system
- Cheart
- DNone of the above
Consider the following statements:
1. Taeniasis is an intestinal infection caused by three species of tapeworm- Taenia solium, Taenia saginata and Taenia asiatica.
2. When cysts develop in the brain, the condition is referred to as neurocysticercosis (NCC). Which of the above statements is/are correct?- AOnly 1
- BOnly 2
- CBoth 1 and 2
- DNone of the above
Which of the following pairs are correctly matched?
1. Anorexia: Sleep disorder 2. Insomnia: Eating disorder 3. Dyspnoea: Shortness of breath 4. Anosmia: Partial or full loss of smell Select the correct answer using the codes given below.- AOnly 1 and 2
- BOnly 2 and 3
- COnly 3 and 4
- DAll of the above
How do COVID vaccines stimulate an immune response?
- ABy introducing live attenuated SARS-CoV-2 virus
- BBy introducing a real SARS-CoV-2 virus
- CBy introducing a harmless piece of SARS-CoV-2 virus
- DBy introducing antibodies against SARS-CoV-2 virus
How do vector vaccines work to provide immunity?
- ABy introducing a weakened or inactivated virus into the body
- BBy directly attacking and destroying pathogens in the body
- CBy placing the virus in a modified version of a different virus
- DBy entering directly into the cells and enabling them to create spike proteins
Consider the following statements regarding the ‘Gangetic Dolphin’:
1. The Gangetic River Dolphin has been categorized as ‘endangered’ under the IUCN’s Red List.
2. It does not have a crystalline eye lens rendering it effectively blind.
3. Navigation and hunting are carried out using echolocation.
4. It has been recognized as India’s National Aquatic Animal. Which of the above statements are correct?- AOnly 1, 2 and 4
- BOnly 2, 3 and 4
- COnly 1, 3 and 4
- DAll of the above
The DNA double helix structure was discovered by
- AJames Watson and Francis Crick
- BRosalind Franklin and Maurice Wilkins
- CLinus Pauling
- DGregor Mendel
Chemistry 7 questions
The amount of solute present per unit volume or per unit mass of the solution/solvent is known as _____ in Chemistry.
- Acomposition of solute
- Bconcentration of solvent
- Cconcentration of solute
- Dconcentration of solution
Which of the following slows down the reaction rate?
- ACatalytic promoter
- BHomogeneous catalyst
- CHeterogeneous catalyst
- DNone of the above
Match List-I (Cloth) with List-II (Origin):
(a) Linen 1. Coconut plant (b) Coir 2. Flax plant (c) Mohair 3. Feathers of duck and geese (d) Down 4. Angora goat Select the correct answer using the codes given below.
- Aa-1, b-3, c-2, d-4
- Ba-4, b-3, c-1, d-2
- Ca-2, b-1, c-4, d-3
- Da-4, b-1, c-3, d-2
In the context of lab-grown diamonds (LGDs), what is used as a diamond seed?
- AWhite sapphire
- BMoissanite
- CGraphite
- DCubic zirconia (CZ)
What is the 'fibre' used to make bulletproof jackets?
- ANylon
- BTerylene
- CTweed
- DKevlar
What is/are the full form(s) of HMX?
1. High Melting Explosive
2. High-Density Monoatomic Xenon
3. Hedge Monetizing Xenocurrency
4. Her Majesty's Explosive
Select the correct answer using the codes given below.- A1 and 2
- B2 and 3
- COnly 1
- D1 and 4
What is the basis of most useful classification of medications in medical chemistry?
- APharmacological effect
- BMolecular targets
- CChemical structure
- DNone of the above
Physics 8 questions
Two objects of different masses falling freely near the surface of the Moon would
- Ahave different accelerations
- Bundergo a change in their inertia
- Chave same velocity at any instant
- Dexperience forces of same magnitude
The image formed by concave mirror is real, inverted and of the same size as that of the object. The position of the object should be
- Aat the focus
- Bat the centre of curvature
- Cbetween the focus and centre of curvature
- Dbeyond the centre of curvature
Match List-I (Colour) with List-II (Combination):
List-I (Colour) List-II (Combination) (a) Magenta 1. Green and blue (b) Teal 2. Red and blue (c) Mauve 3. Blue, green and white (d) Cyan 4. Blue, red and white - Aa-2, b-3, c-4, d-1
- Ba-2, b-4, c-3, d-1
- Ca-4, b-2, c-1, d-3
- Da-3, b-4, c-2, d-1
Which of the following liquids is a bad conductor of electricity?
- ASalted water
- BOrange juice
- CLemon juice
- DNone of the above
Current density is
- Aa scalar quantity
- Ba vector quantity
- Cdimensionless
- DNone of the above
An AC current can be produced by
- Achoke coil
- Bdynamo
- Ctransformer
- DNone of the above
In the universe, what are pulsars?
- AA group of stars
- BRotating neutron stars
- CExplosion of a star
- DRadio waves emitted by a star
A photoelectric cell is a device which
- Aconverts light energy into electric energy
- Bconverts electric energy into light energy
- Cstores light energy
- DNone of the above