Ray Optics and Optical Instruments - Result Question 27

27. An equiconvex lens has power P. It is cut into two symmetrical halves by a plane containing the principal axis. The power of one part will be,

(a) P

(b) 0

(c) P2

(d) P4

[NEET Odisha 2019]

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Answer:

Correct Answer: 27. (a)

Solution:

  1. (a) When lens is cut in two half then power of one part will be same. i.e., P, as focal length remains same.


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