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As shown in the figure, the angle between two plane mirrors (M1 and M2) is 125°. If the incident ray strikes mirror M1 with an angle of incidence ?1i = 56°, determine the angle of reflection ?2r for mirror M2.

As shown in the figure, the angle between two plane mirrors (M1 and M2) is 125°. If the incident ray strikes mirror M1 with an angle of incidence ?1i = 50°, determine the angle of reflection ?2r for mirror M2.

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physics   college   Webassign   
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b = 90˚ - 50˚ = 40˚

c = 180˚ - (125˚+40˚) = 15˚ 

θ2r = 90˚-15˚ = 75˚

Answer: 75˚

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answered by: Hardt99
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As shown in the figure, the angle between two plane mirrors (M1 and M2) is 125°. If the incident ray strikes mirror M1 with an angle of incidence ?1i = 56°, determine the angle of reflection ?2r for mirror M2.
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