A beam of diameter d is incident on a glass hemisphere as shown. If the radius of curvature of the hemisphere is very large in comparison to d , then the diameter of the beam at the base of the hemisphere will be

Question

A beam of diameter d is incident on a glass hemisphere as shown. If the radius of curvature of the hemisphere is very large in comparison to d , then the diameter of the beam at the base of the hemisphere will be, 3 4 d, d, d 3, 2 3 d

MARKS App · Accepted Answer

μ 2 v - μ 1 u = μ 2 - μ 1 R ⇒ 3 2 v - 1 ∞ = 3 2 - 1 R ⇒ 3 2 v = 1 2 R v = 3 R ⇒ d 3 R = d ′ 2 R ⇒ d ′ = 2 3 d

Search any question & find its solution

Looking for more such questions to practice?