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Standard XII
Physics
Reflection at Plane Surface
Question

The two mirrors illustrated in this Figure meet at a right angle. The beam of light in the vertical plane indicated by the dashed lines strikes mirror 1 as shown.
Determine the distance the reflected light beam travels before striking mirror 2.

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Solution
Verified by Toppr

From geometry,
$$\begin{array}{l}1.25 \mathrm{m}=d \sin 40.0^{\circ} \\\text { so } d=[1.94 \mathrm{m}]\end{array}$$

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