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IIT JEE Advanced 2012 Paper 1

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Question : 5

Total: 60

A mixture of 2 mol of helium gas (atomic mass = 4 amu) and 1 mol of argon gas (atomic mass = 40 amu) is kept at 300 K in a container. The ratio of the rms speeds [

] is

0.32
0.45
2.24
3.16

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