Home Physics Ray Optics NCERT Exampler A car is moving with at a constant speed of …
Physics Ray Optics NCERT Exampler MCQ (Single Correct)

A car is moving with at a constant speed of on a straight road. Looking at the rear view mirror, the driver finds that the car following him is at a distance of 100 m and is approaching with a speed of .
In order to keep track of the car in the rear, the driver begins to glance alternatively at the rear and side mirror of his car after every 2 s till the other car overtakes. If the two cars were maintaining their speeds, which of the following statement (s) is/are correct?

A
The speed of the car in the rear is
B
In the side mirror, the car in the rear would appear to approach with a speed of to the driver of the leading car
C
In the rear view mirror, the speed of the approaching car would appear to decrease as the distance between the cars decreases
D
In the side mirror, the speed of the approaching car would appear to increase as the distance between the cars decreases

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The correct answer is:
D

The speed of the image of the car would appear to increase as the distance between the cars decreases.

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