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Light is incident at an angle of 60° at an air to glass interface. If the...

Light is incident at an angle of 60° at an air to glass interface. If the angle of refraction inside the glass is 32°, then calculate the speed of light within the glass.

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3.00 x108 m/s

1.77 x 108 m/s

4.90 x 108 m/s

1.84 x108 m/s

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Answer #1

Sol: Suppose speed of light in gless is v then

according to Snell's Law

here i = 60 degree r = 32 degree and c = 3x108 m/s

hence

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