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A convex mirror has a focal length of 20...

A convex mirror has a focal length of `20 cm.` A real object is placed at a distance of `20 cm ` in front of the mirror form the pole. The mirror produces the image at

A

infinity

B

`20 cm`

C

`40 cm`

D

`10 cm`

Text Solution

Verified by Experts

The correct Answer is:
D
`(1)/(-20)+(1)/(v)=(1)/(20)`
or `(1)/(v)=(2)/(20)=(1)/(10)` or `v=10cm`.
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