Physics PYQ 49 of 144 · Thermo

Which one of the following is associated with 'Albedo'?

  1. ATransmitting power
  2. BAbsorbing power
  3. CEmissive power
  4. DReflecting power

UPPSC 2019

Show answer and explanation

Correct answer: (d) Reflecting power

Explanation

Albedo is the reflecting power of a surface, i.e. the fraction of incident sunlight reflected without being absorbed.

It is a dimensionless ratio; bright surfaces like sea ice have high albedo, dark surfaces low albedo.

It relates to reflection, not transmission, absorption or emission.

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