Questions
The wavelengths of two waves are 50 and 51 cm respectively. If the temperature of the room is 20oC, then what will be the number of beats produced per second by these waves, when the speed of sound at 0oC is 332 m/sec
detailed solution
Correct option is A
v0=332 m/s. Velocity sound at t°C is vt=(v0+0.61 t)⇒v20=v0+0.61×20=344.2m/s⇒Δn=v201λ1−1λ2=344.210050−10051=14Talk to our academic expert!
Similar Questions
A metal wire of diameter 1.5 mm is held on two knife edges separated by a distance 50 cm the tension in the wire is 100 N the wire vibrating with its fundamental frequency and vibrating tuning fork together produces 5 beats per second. The tension in the wire is then reduced to 81 N, when the two are excited, beats are heard at the same rate. Calculate frequency of the fork.
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