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The rear view mirror of a car is plane mirror. A driver is reversing his car at a speed of 2m /s. The driver sees in his rear view mirror, the image of a truck parked behind the car. The speed at which the image of a truck appears to approach the driver will be

Posted by Savitoj Kaur 1 year, 1 month ago

CBSE > Class 10 > Science

1 answers

Alisha Kushwah 1 year ago

As we know, the distance of a object from s plane mirror is equal to the distance of image formed behind mirror. therefore , the truck is at the distance 'D' from the car and the image of truck that the car driver will see will appear 2×D . So , Using: Speed = Distance / Time 2 m/s = 2×D/ Time when we move the 2 to LHS. 2×2 m/s= D/Time Final answer will be 4 m/s . Hope it helps!!

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