1. Two mirrors make an angle of 90 degrees with each other, as in the figure above. A ray is incident on the mirror M1 at an angle of 65 degrees to the normal. Find the angle the ray makes with the normal to M2 after it is reflected from both mirrors.

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Chapter36: Image Formation
Section: Chapter Questions
Problem 36.11OQ: A converging lens made of crown glass has a focal length of 15.0 cm when used in air. If the lens is...
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1. Two mirrors make an angle of 90 degrees with each other, as in the figure above. A ray is
incident on the mirror M1 at an angle of 65 degrees to the normal. Find the angle the ray makes
with the normal to M2 after it is reflected from both mirrors.
2. A ray strikes a water surface at an angle. The angle of refraction in water is found to be 20
degrees. What must be the angle of incidence of the light ray have been? N glass= 1.5525 :
N air=1.00029. Use Snell's Law.
Transcribed Image Text:1. Two mirrors make an angle of 90 degrees with each other, as in the figure above. A ray is incident on the mirror M1 at an angle of 65 degrees to the normal. Find the angle the ray makes with the normal to M2 after it is reflected from both mirrors. 2. A ray strikes a water surface at an angle. The angle of refraction in water is found to be 20 degrees. What must be the angle of incidence of the light ray have been? N glass= 1.5525 : N air=1.00029. Use Snell's Law.
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