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Q. The graph shows variation of $v$ with change in $u$ for a mirror. Points plotted above the point $P$ on the curve are for values of $v$Physics Question Image

Ray Optics and Optical Instruments

Solution:

At $P, u=v$ which happened only when $u$ $=2 f$
At another point $Q$ on the graph (above $P)$
$v>2 f$

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