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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Ruby negi
Considering the Vrms when the gas molecule are at room temperature Vrms=(3KT/m)^1/2 Hence, V is inversely proportional to m of the gas and we know that m of oxygen > m of hydrogen v of oxygen < v of hydrogen so option a is correct...
according to your concept, opt b should be correct.