Questions
The ratio of the speed of sound in nitrogen gas to that in helium gas, at 300 K is
a
2/7
b
1/7
c
3/5
d
6/5
detailed solution
Correct option is C
Velocity of sound in gas v=γRTM⇒v∝γTM⇒vN2vHe=γN2γHe×MHeMH2=75R×453R×28=35Talk to our academic expert!
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The frequency of a sound wave is n and its velocity is v. If the frequency is increased to 4n, the velocity of the wave will be
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