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
$${d}={b}\:\mathrm{tan}\:\mathrm{2}\theta=\mathrm{100}×\mathrm{tan}\:\left(\mathrm{2}×\mathrm{5}\right)=\mathrm{17}.\mathrm{63}\:{cm} \\ $$
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
$$\mathrm{Thank}\:\mathrm{you}\:\mathrm{sir}.\:\mathrm{God}\:\mathrm{bless}\:\mathrm{you}. \\ $$