Question

An object is placed at a distance m times the focal length of
a divergent lens. The size of the image is shorter than that
of the object by
Example
A. m times B. (m + 1) times
C. (m –1) times D. m2 times

Answer 1

Answer:

Given, u=−mf

∴

v

1

−

(−mf)

1

=−

f

1

⇒

v

1

=−

f

1

(1+

m

1

)

⇒−

f

v

=

m+1

m

⇒−

u

v

=(

1+m

1

)

Explanation:

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