Light Lite-6

Classical Mechanics Level pending
  • A car of length 3 m moves at a constant velocity 36 km/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 :
  • Light Lite 5
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