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Question Number 146141 by Tawa11 last updated on 11/Jul/21

$$$$ An incident ray is reflected normally by a plane mirror onto a screen where it forms a bright spot. The mirror and screen are parallel and 1m apart. If the mirror is rotated through 5°, calculate the displacement of the spot\n

Commented bymr W last updated on 11/Jul/21

Commented bymr W last updated on 11/Jul/21

$$d=b\tan 2\theta =100\times \tan \left(2\times 5\right)=17.63cm$$

Commented byTawa11 last updated on 11/Jul/21

$$\mathrm{The}\mathrm{diagram}\mathrm{explanation}\mathrm{is}\mathrm{needed}\mathrm{if}\mathrm{possible}\mathrm{please}.$$

Commented byTawa11 last updated on 11/Jul/21

$$\mathrm{Thank}\mathrm{you}\mathrm{sir}.\mathrm{God}\mathrm{bless}\mathrm{you}.$$

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