A point object is held above a thin equiconvex lens at its focus. The focal length is $0.1 \mathrm{m}$ and the lens rests on a horizontal thin plane mirror. The final image will be formed at

• A

  infinite distance above the lens
• Correct answer
  B

  $0.1 \mathrm{m}$ above the center of the lens
• C

  infinite distance below the lens
• D

  $0.1 \mathrm{m}$ below the center of the lens

Solution

As the lens is placed on a horizontal thin plane mirror. So due to role of plane mirror the image will be formed at the same point $O$ above $0.1 \mathrm{m}$ distance above the center of the lens.

Hence, the correct answer is option: 'B'.