NEET Questions

A pipe 20 cm long is closed at one end. Which harmonic mode of the pipe is resonantly excited by a source of 1237.5 Hz. (sound velocity in air $= 330\,\,{\rm{m}}{{\rm{s}}^{ - 1}}$)

Two organ (open) pipes of length 50 cm and 51 cm produce ‘6’ beats/s. Then the speed of sound is nearly

Two organ (open) pipes of length 50 cm and 51 cm produce ‘6’ beats/s. Then the speed of sound is nearly

If C is rms speed of molecules in a gas and ‘v’ is the speed of sound waves in the gas, the value of $c/v$ for all diatomic gases is

If C is rms speed of molecules in a gas and ‘v’ is the speed of sound waves in the gas, the value of $c/v$ for all diatomic gases is

At the temperature (in ${0^0}C$) will the speed of sound in air be 3 times it’s value at ${0^0}C$

At the temperature (in ${0^0}C$) will the speed of sound in air be 3 times it’s value at ${0^0}C$

The ratio of speed of sound in Nitrogen gas to that in Helium gas at 300 K is (Assume both gases to be ideal)

The ratio of speed of sound in Nitrogen gas to that in Helium gas at 300 K is (Assume both gases to be ideal)

The speed at which a source of sound should moves so that a stationery observer finds the apparent frequency equal to 11/12 of the original frequency.