A point object is kept in front of a plane mirror. The plane mirror is doing $SHM$ of amplitude $2\,cm$. The plane mirror moves along the $x-$ axis and $x-$ axis is normal to the mirror. The amplitude of the mirror is such that the object is always infront of the mirror. The amplitude of $SHM$ of the image is .... $cm$
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$\frac{\mathrm{V}_{1}+\mathrm{V}_{0}}{2}=\mathrm{V}_{\mathrm{M}}$
$\mathrm{V}_{0}=\mathrm{O} \Rightarrow \mathrm{V}_{\mathrm{I}}=2 \mathrm{V}_{\mathrm{M}}$
$A_{I}=4 \mathrm{cm}$
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