Question

ram is standing at 50 cm from the mirror if he moved 10 cm away from the mirror what will the
(a)the distance between ram's image and the mirror
(b)the distance ram's image and ram.

Answer 1

$$\begin{gathered} \mathrm{Distance}\mathrm{of}\mathrm{image}\mathrm{behind}\mathrm{the}\mathrm{surace}\mathrm{of}\mathrm{the}\mathrm{plane}\mathrm{mirror} \\ =\mathrm{Distance}\mathrm{of}\mathrm{object}\mathrm{in}\mathrm{front}\mathrm{of}\mathrm{the}\mathrm{surface}\mathrm{of}\mathrm{the}\mathrm{plane}\mathrm{mirror} \\ \left(\mathrm{a}\right) \\ \mathrm{Distance}\mathrm{of}\mathrm{Ram}\text{'}\mathrm{s}\mathrm{image}\mathrm{and}\mathrm{mirror}=\mathrm{Distance}\mathrm{of}\mathrm{Ram}\mathrm{in}\mathrm{front}\mathrm{of}\mathrm{the}\mathrm{mirror} \\ =50+10 \\ =60\mathrm{cm} \\ \left(\mathrm{b}\right) \\ \mathrm{Distance}\mathrm{of}\mathrm{Ram}\text{'}\mathrm{s}\mathrm{image}\mathrm{and}\mathrm{Ram}=2\times \mathrm{Distance}\mathrm{of}\mathrm{Ram}\text{'}\mathrm{s}\mathrm{image}\mathrm{and}\mathrm{mirror} \\ =2\times 60 \\ =120\mathrm{cm} \end{gathered}$$