An observer moves on the same line on which two sources of sound of frequency `660 Hz` are present. The observer observes beat frequency of `10Hz`. If speed of sound is `300m//s` then speed of the observer is:
A source of sound of frequency 500 Hz is moving towards an observer with velocity 30 m/s . The speed of sound is 330 m/s . the frequency heard by the observer will be
A whistle emitting a sound of frequency 450 Hz approaches a stationary observer at a speed of 33 m/s. Velocity of sound is 330 m/s. The frequency heard by the observer, in Hz, is :
A source is moving with constant speed upsilon_(s) = 20 m//s towards a stationary observer due east of the source. Wind is blowing at the speed of 20 m//s at 60^(@) north of east. The source has frequency 500 H_(Z) . Speed of sound = 300 m//s . The frequency resgistered by the observer is approximately
An observer is moving away from source of sound of frequency 100 Hz. His speed is 33 m/s. If speed of sound is 330 m/s, then the observed frequency is
A source of sound of frequency 90 vibrations/ sec is approaching a stationary observer with a speed equal to 1/10 the speed of sound. What will be the frequency heard by the observer
A source of sound is travelling towards a stationary observer. The frequency of sound heard by the observer is 25 % more than the actual frequency. If the speed of sound is v , that of the source is
