Refraction Of Light Video Lessons

Concept

# Problem: When a light beam emerges from water into the air, the average light speedA. remains the sameB. decreasesC. increases

###### FREE Expert Solution

The speed of light in a medium can be expressed as:

$\overline{){\mathbf{v}}{\mathbf{=}}\frac{\mathbf{c}}{\mathbf{n}}}$

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###### Problem Details

When a light beam emerges from water into the air, the average light speed

A. remains the same

B. decreases

C. increases