Question

find the refractive index of a material which is made up glass

Answer 1

The angle of refraction inside the block is 33°. Calculate the refractive index. A ray of light passing from the air into glass, showing the incident ray (in the air) and the refracted ray (in the glass). A refractive index of 1.5 will slow down light and bend it toward the normal inside the glass block.

Hope it's help you

Answer 2

Use sin i/sin it will come between, -1 and 2