NEET | 2018SHMHard

Question

A tuning fork is used to produce resonance in a glass tube. The length of the air column in this tube can be adjusted by a variable piston. At room temperature of 27oC two successiv resonances are produced at 20 cm and 73 cm column length. If the frequency of the tuning fork is 320 Hz, the velocity of sound in air at 27oC is :-

Options

A.

330 m/s

B.

339 m/s

C.

350 m/s

D.

300 m/s

Solution

V = 2f(l2 - l1)
= 2(320) × (0.73 - 0.20)
= (640) × (0.53) = 339.2 m/s

Create a free account to view solution

View Solution Free
Topic: SHM·Practice all SHM questions

More SHM Questions

If a simple harmonic motion is represented by + αx = 0, its time period is...Which of the graph between acceleration and time is correct ?...The quantities which are always Zero for a particle performing linear SHM :...The speed v of a particle moving along a straight line, when it is at a distance (x) from a fixed point of the line is g...A particle excites S.H.M. in a straight line. line In the first second starting from rest it travels a distance ′a...