material speed of light

space 3 x 108 m/s

water 2.25 x 108 m/s

glass 2 x 108 m/s

air 3 x 108 m/s


Light moves from air into a new material. The greatest refraction would occur when light passes through which material?

Aair
Bglass
Cwater
DIt would refract the same amount in each material.

Verified Answer :

AL2006

The question is poor. Light doesn't refract on its way THROUGH anything. It refracts at the boundary BETWEEN two different media. The effect is greatest where the ratio of the speeds of light in the two media is greatest. On your list, that would be at the boundary between air or space and glass.

Answer: I think the answer is B glass.

Explanation: Because Glass is light.