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  3. 1. light of wavelength 620nm in air is incident on

1. Light of wavelength 620nm in air is incident on a surface of a flat piece...

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Question

Physics

1. Light of wavelength 620nm in air is incident on a surface ofa flat piece of glass with an index of refraction of

1.50 with an angle of incidence of 30°.

a.What is the angle of refraction?

-Answer: 19.5°

b. Find the wavelength and frequency of light in glass.

Answer: 413nm, 4.84x1014Hz

c.Explain under what circumstances “total internal reflection”can be observed at the boundary between air

and this piece of glass. Be as specific as possible.

Answer & Explanation Solved by verified expert
3.8 Ratings (369 Votes)
Angle of incidence i 30 degAngle of refraction r ref index SiniSin r15 sin 30 sinrsinr sin 3015 033r 195 degreesb wavelegth in air 620nmVelocity of light in air 3X 108 msFrequency 3 X 108ms 620 x 109 mrs 484 X 1014Hzfrequency remains at 484 X 1014 Hz    See Answer
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