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

Question

A point object is held above a thin equiconvex lens at its focus. The focal length is 0.1 m and the lens rests on a horizontal thin plane mirror. The final image will be formed at (A) infinite distance above the lens (B) 0.1 m above the center of the lens (C) infinite distance below the lens (D) 0.1 m below the center of the lens

Tardigrade Admin · Accepted Answer

As the lens is placed on a horizontal thin plane mirror. <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/physics/861fac4eb82f50ec62be3b9103730a76-.png" /> So due to role of plane mirror the image will be formed at the same point O above 0.1 m distance above the center of the lens.

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

infinite distance above the lens

0.1 m above the center of the lens

infinite distance below the lens

0.1 m below the center of the lens

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 $0.1 m$ distance above the center of the lens.

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