Question

A light ray is travelling from air medium to water medium (refractive index = 1.3) such that angle of incidence is x degree and angle of refraction is y degree. The value of ratio (sin y)/ (sin x) is?

• A. 0.3
• B. 1.3
• C. 1
• D. 1/1.3

Answer 1

Answer:

D. 1/1.3

• The correct answer is 1/1.3.

• Calculation: Laws of refraction states that "The ratio of sine of the incident angle and the refracted angle is a constant".