A beam of light traveling in air is incident on a
A beam of light traveling in air is incident on a transparent plastic material at an angle of incidence of 49°. The angle of refraction is 30°. What is the index of refraction of the plastic?
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a beam of light traveling in air is incident on a transparent plastic material at an angle of incidence of 49deg the
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1 a 1000-turn loop radius 0032 m of wire is connected to a 20 ohm resistor as shown in the figure a magnetic field is
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