Waves of Sound
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In a sinusoidal wave, the time required for a particular point to move from maximum displacement to zero displacement is 0.170 second. The frequency of the wave is
[CBSE PMT 1998; AIIMS 2001;AFMC 2002; CPMT 2004]
1.47 Hz
0.36 Hz
0.73 Hz
2.94 Hz
Doppler shift in frequency does not depend upon
The frequency of the wave produced
The velocity of the source
The velocity of the observer
Distance from the source to the listener
A stone is dropped into a lake from a tower 500 metre high. Taking the speed of sound as 330 m/s, the sound of the splash will be heard by the man approximately after
11.5 seconds
21 seconds
10 seconds
14 seconds
A stone is dropped into a lake from a tower 500 metre high. Taking the speed of sound as 330 m/s, the sound of the splash will be heard by the man approximately after
10 seconds
14 seconds
21 seconds
11.5 seconds