Sound WavesMedium
Question
A motor cycle starts from rest and accelerates along a straight path at 2 m/s2. At the starting point of the motor cycle there is a stationary electric siren. How far has the motor cycle gone when the driver hears the frequency of the siren at 94% of its value when the motor cycle was at rest? (speed of sound = 330 ms-1).
Options
A.49 m
B.98 m
C.147 m
D.196 m
Solution
Motor cycle, u = 0, a = 2 m/s2
Observer is in motion and source is at rest.
⇒
⇒

Observer is in motion and source is at rest.
⇒

⇒


Create a free account to view solution
View Solution FreeMore Sound Waves Questions
Two tuning forks having frequency 256 Hz (A) and 262 Hz (B) tuning fork. A produces some beats per second with unknown t...A bus is moving with a velocity of 5 m/s towards a huge wall. The driver sounds a horn of frequency 165Hz. If the speed ...What is minimum length of a tube, open at both ends, that resonantes with tuning fork of frequency 350 Hz ? (velocity of...Two pulse in a stretched string, whose centers are initially 8 cm apart, are moving towards each other as shown in the f...Two notes A and B. sounded together, produce 2 beats per sec. Notes B and C sounded together produce 3 beats per sec. Th...