MPSC / General Science (Physics)Moderate
Q.54. If the refractive index of the medium is more than the refractive index of double concave or double convex lens, then the focal length of the lens becomes ______. (1) infinite (2) zero (3) positive (4) negative
a
(1) infinite / अनंत
b
(2) zero / शून्य
c
(3) positive / धन (+)
d
(4) negative / ऋण (-)
Correct Answer: Option D
The correct solution involves applying the fundamental concept to derive the final value step by step...