question_answer

The graph between the lateral magnification (m) produced by a lens and the distance of the image (v) is given by [MP PMT 1994]

A)                                

B)

C)                                

D)

Correct Answer: C

Solution :

                   For a lens \[m=\frac{f-v}{f}\] Þ \[m=\left( -\frac{1}{f} \right)\,v+1\] Comparing this equation with \[y=mx+c\] (equation of straight line)