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Light in air is incident on a piece of plastic at an angle of (34.6 +...

Light in air is incident on a piece of plastic at an angle of (34.6 + A) degrees. If the plastic has an index of refraction of (1.3 + B/10), what is the angle of refraction inside the plastic? Calculate the answer in degrees and rounded to three significant figures.

A= 7

B= 1

A ray of light in air is incident on a material at an angle of incidence of 65.0 degrees. If the angle of refraction is (28.5 + A) degrees, what is the speed of light in the material? Calculate the answer in meters per second (m/s) and rounded to three significant figures. (Use scientific notation)

A= 6

PLEASE show work, very confused, thank you!

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