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Time taken by an object falling from rest to cover the height of 1 h and 2 h is respectively 1 t and 2 t then the ratio of 1 t to 2 t is

1. 2 1 : h h
2. 2 1 : h h
3. 2 1 2 : h h
4. 2 h 1 : h 2

Correct answer: 2 1 : h h

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