Light propagates 2 cm distance in a glass of refractive index 1 . 5 in time t 0 . In the same time t 0 , light propagates a distance of 2 . 25 cm in a medium. The refractive index of the medium is

Question

Light propagates 2 cm distance in a glass of refractive index 1 . 5 in time t 0 . In the same time t 0 , light propagates a distance of 2 . 25 cm in a medium. The refractive index of the medium is, 4 3, 3 2, 8 3, None of these

MARKS App · Accepted Answer

For a given time, optical path remains constant ∴ μ 1 x 1 = μ 2 x 2 or 1 . 5 × 2 = μ 2 × 2 . 2 5 ∴ μ 2 = 1 . 5 × 2 2 . 2 5 = 2 1 . 5 = 2 0 1 5 = 4 3

Search any question & find its solution

Looking for more such questions to practice?