the focal length of lens depends upon the _________
a) black shade
b) White light
c) infade rays
d) surrounding medium in which is kept
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3
Answer:
The correct answer in the question is ("D" surrounding medium in which is kept")
Explanation:
- As a result, focal length is determined by the radius of curvature, the refractive index of the lens material, and the refractive index of the medium in which the lens is positioned.
Answered by
1
answer is (d) surrounding medium in which is kept
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