4. A mirror is part of sphere of diameter 9.3 cm. A boy stands 0.5 m away from the mirror<br />and is amused to see his image. Determine the height of the boy's image if he is 1.3 m<br />tall. Where does the boy find his image? Why do you think the boy is so amused at<br />seeing his image? (A ray diagram is required).

The answer is a i think

Sorry i don’t know what to do

Answerthe energy required is 1.60 × 10⁻¹⁸ j, to three significant figures.explanationwe define electric potential as the ratio electric potential energy to the charge,    then the following gives us the potential difference,      the formula  may be on your formula sheet.the change in electric potential energy would be the energy that would needed to move it from point a to point b. solving for that, we get    using q = 8.00  × 10⁻¹⁹ c and  δv = 2.00 v, we get    the energy required is 1.60 × 10⁻¹⁸ j, to three significant figures.