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sargam
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2. The retina of a human eye can detect light when radiant energy incident on it is at least 4.0X10-17 J. For light of 600-nm
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A car travelling with a speed of 15m/s is braked and it slows down with uniform retardation.It covers of 88 m as its velocity reduces to 7m/s.If the car continues to slow down with the same ratr,further distance will it be brought to rest?