#### A car is fitted with a convex side-view mirror of focal length 20 cm. A second car 2.8 m behind the first car is overtaking the first car at a relative speed of 15 m s-1. The speed of the image of the second car as seen in the mirror of the first one is Option 1) Option 2) Option 3) Option 4)

As we learnt in

Mirror Formula -

- wherein

Object distance from pole of mirror.

Image distance from pole of mirror.

focal length of the mirror.

From mirror formula

so,

Correct option is 2.

Option 1)

This is an incorrect option.

Option 2)

This is the correct option.

Option 3)

This is an incorrect option.

Option 4)

This is an incorrect option.

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