Physics-
General
Easy
Question
A point source of light ' S ' is placed at a distance 10 cm in front of the center of a mirror of width suspended vertically on a wall. A man walks with a speed 10 cm/s in front of the mirror at a distance of 20 cm from it as shown in figure. Find the maximum time during which he can see the image of the source S in the mirror.
- 3s
- 1 s
- 2 s
- 6 s
The correct answer is: 6 s
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