CTEVT Prep
Practice
Question Bank
Mock Test
Papers
Guidance
AI Assist
Log In
Sign Up
Back to Practice
medium • Past Paper
A ray of light is incident on a glass slab. If the angle of incidence is 45 degrees and the angle of refraction is 30 degrees, what is the refractive index?
A
1.5
B
1.414
C
1.732
D
1.25