1.

A Car of length 3 in moves at a constant velocity 36km/hr. A man wants to take a photo of side view of the car. The size of the image of the car is 1.5 cm long. The time of exposure needed for the car to get a clear picture, if the image should not Move more than.0.1 mm, is ……1) 1.5 x 10-3 S  2) 3 x 10-3 S3) 2.8 x 10-3 S4) 2 x 10-3 S

Answer»

Correct option is 4) 2 x 10-3 S



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