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If the distribution of molecular speeds of a gas is as per the figure shown below, then the ratio of the most probable, the average, and the root mean square speeds, respectively, is Fraction of molecules speed

1. 1 : 1 : 1
2. 1 : 1 : 1.224
3. 1 : 1.128 : 1.224
4. 1 : 1.128 : 1

Correct answer: 1 : 1 : 1.224

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