The ratio of de-Broglie wavelengths of molecules of hydrogen and helium which are at temperature 
and 
respectively is
A
B
C
D
1
Text Solution
Verified by ExpertsThe correct answer is:
C
de Broglie wavelength is given by 
Root-mean-square velocity of a gas particle at the given temperature (T) is given as,
where 
Boltzmann's constant and 
mass of the gas particle and 
temperature of the gas in K.
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