JEE Main 20208 Jan, Morning shiftPhysicsMediumOscillations and Waves185× since 2002
A one metre long (both ends open) organ pipe
is kept in a gas that has double the density of
air at STP. Assuming the speed of sound in air
at STP is 300 m/s, the frequency difference
between the fundamental and second harmonic
of this pipe is ________ Hz.