JEE AdvancedMedium
Q.The lens maker's formula for a thin lens in air is 1/f = (μ - 1) (1/R1 - 1/R2). If the lens is immersed in a liquid of refractive index μ_l, the focal length becomes
a
f (μ - 1)/(μ/μ_l - 1)
b
f (μ/μ_l - 1)/(μ - 1)
c
f (μ - μ_l)/(μ - 1)
d
f (μ - 1)/(μ_l - 1)
Correct Answer: Option B
The correct solution involves applying the fundamental concept to derive the final value step by step...