question_answer

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 \[v\]

A)  smaller than\[f\]            

B)  smaller than \[2f\]

C)  larger than\[2f\]             

D)  larger than\[f\]

Correct Answer: C

Solution :

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