A ball is dropped from a height ‘h’ and another from height 4h. The ratio of time taken by the two balls to reach ground is……..

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1:2

2:1

1:2

2:1

answer is A.

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Detailed Solution

The time of fall of a freely falling body t=2hg⇒tαh=t1t2=h1h2=h4h=12

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