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A horizontal, parallel-sided plate of glass having a refractive index of 1.49 is in contact with...

A horizontal, parallel-sided plate of glass having a refractive index of 1.49 is in contact with the surface of water in a tank. A ray coming from above in air makes an angle of incidence of 38.5 ? with the normal to the top surface of the glass.

A) What angle does the ray refracted into the water make with the normal to the surface?

Use 1.33 for the index of refraction of water.

B) What is the dependence of this angle on the refractive index of the glass?

A horizontal, parallel-sided plate of glass having

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Answer #1

snells law

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Part A: 27.90

Part B: with increasing refractive index (of glass or any other material) more bending will take place which means reducing angle of refraction from 27.9 degress to lesser values. (for n=1.5, it becomes 24.5 degrees)

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