Question

The sound emitted from the siren of an
ambulance has frequency of 1500 Hz.
The speed of sound is 340 m/s. Calculate
the difference in frequencies heard by
a stationary observer it the ambulance
initially. travels towards and then away
from the observer at a speed of 30 m/s.​

Answer 1

Answer:

When the air columns in two pipes closed at one end of lengths 62 cm and 63 cm

are vibrating in fundamental mode, 7 beats are heard in 3 second. Neglecting end

correction, calculate velocity of sound in air.