A) \[{{\upsilon }_{d}}<{{\upsilon }_{d}}\]
B) \[{{\upsilon }_{m}}>{{\upsilon }_{d}}\]
C) \[{{\upsilon }_{m}}\,{{\upsilon }_{d}}=1\]
D) \[{{\upsilon }_{m}}={{\upsilon }_{d}}\]
Correct Answer: B
Solution :
From the relation, \[{{\upsilon }_{m}}=\frac{\sqrt{\gamma P}}{\rho }\] where, P = pressure of the gas \[\rho =\] density of the gas Since, density of moist air is less than that of dry air \[i.e.,\] \[{{\rho }_{m}}<{{\rho }_{d}}\] Therefore, \[{{\upsilon }_{m}}>{{\upsilon }_{d}}\]
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