NEET Sample Paper NEET Sample Test Paper-14

  • question_answer 18) A convex lens forms an image at a distance 10 cm when a parallel beam of light is incident on it. Find the position (s) of a concave mirror of radius of curvature 5 cm such that the final image is formed at infinity

    A)  at a distance 10 cm from the lens.

    B)  at a distance of 15 cm from the lens.

    C)  at a distance of 5 cm from the lens.

    D)  both [a] and [b].

    Correct Answer: D

    Solution :

    Ray diagram for option A Ray diagram for Option B In the first ray diagram point O is the pole of the mirror and in the second ray diagram point C is the center of curvature of the mirror. It follows from the principle of reversibility of light that the final image in both the cases will be formed at infinity. Hence, the correction option is [d].

adversite



LIMITED OFFER HURRY UP! OFFER AVAILABLE ON ALL MATERIAL TILL TODAY ONLY!

You need to login to perform this action.
You will be redirected in 3 sec spinner

Free
Videos