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A car driver at 50 km/h sees the image o...

A car driver at 50 km/h sees the image of an another car, in his plane mirror coming behind with 60 km/h. The speed by which the car and the virtual image in the plane mirror approached each other is

A

15 km/h

B

20 km/h

C

30 km/h

D

40 km/h

Text Solution

Verified by Experts

The correct Answer is:
B
Speed of car dricerv = 60 - 50 = 10 km/h
`therefore` Required speed = 2v = `2 xx 10 = 20 km/h`
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