A ray of light incident on a plane mirror at an angle theta . If the angle between the incident and reflected rays is 80^∘ , what is the value of theta A. 40^∘ B. 50^∘ C. 45^∘ D. 55^∘
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The angle of incidence (theta) is equal to the angle of reflection (theta) according to the law of reflection. Show more…
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A light ray is incident on a horizontal plane mirror at an angle of $45^{\circ}$. At what angle should a second plane mirror be placed in order that the reflected ray finally be reflected horizontally from the second mirror, as shown in figure: (a) $\theta=30^{\circ}$ (b) $\theta=24^{\circ}$ (c) $\theta=22.5^{\circ}$ (d) $\theta=67.5^{\circ}$
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