# Refraction and speed of light n medium.

1. A wave has a frequency of 3800 Hz and a wavelength of 0.50 m. What is its speed?

Light passes at an angle of 30.0 degrees to the normal from air (n=1.0003) into glass (n=1.50).

2. What is the speed of of light in the glass?

3. What is the angle of refraction?

4. A light wave has a wavelength of 680 nm. What is its frequency?

Please show the formulas used, work done and the answer. Thank you!

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The speed of a wave is:

Where is the wavelength and f is its frequency.

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