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The temperature of an ideal gas is increased from 200 K to 800 K. If r.m.s. speed of gas at 200 K is v 0 . Then, r.m.s. speed of the gas at 800 K will be :

1. 4 v 0
2. v 0
3. 4v 0
4. 2v 0

Correct answer: 2v 0

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