The rear view mirror of a car is a plane mirror. A driver is reversing his car at a speed of 2 m/s. The
driver sees in his rear mew mirror the image of a truck parked behind his car. The speed at which the
image of the truck appears to approach the driver will be
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Explanation:
In case of plane mirror, the distance is always doubled therefore the speed is in case between the image and the object. So, when driver is reversing his car at a speed of 2 m/s, then the image is also coming closer to the mirror by 2m/s. Thus, it seems that the image of the truck appears to approach the driver at 4 m/s.
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