Physics PYQ 77 of 144 · Optics

What type of lens is used in magnifying glass?

  1. APlano-concave lens
  2. BConvex lens
  3. CConvex mirror
  4. DConcave lens
  5. ENone of the above/More than one of the above

67th BPSC

Show answer and explanation

Correct answer: (b) Convex lens

Explanation

A magnifying glass uses a convex lens, which is thicker at the centre and converges light rays.

When the object is within the focal length, it forms an enlarged, erect virtual image.

A concave lens diverges light and gives a diminished image, so it cannot magnify.

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