354698 A train moving at a speed of \(200\;m{s^{ - 1}}\) towards stationary object emits a sound of frequency \(1000\;Hz\). Some of the sound reaching the object gets reflected back to the train as echo. The frequency of the echo as detected by the driver of the train is : (speed of sound in air is \(300\;m{s^{ - 1}}\) )
354699 A source of sound A emitting waves of frequency \(1800\;Hz\) is falling towards ground with a terminal speed \(v\). The observer \(B\) on the ground directly beneath the source receives waves of frequency \(2150\;Hz\). The source A receives waves, refelected from ground of frequency nearly ( speed of sound \( = 343\;m/s\))
354701
A stationary sound source \(S\) of frequency \(334\;Hz\) and a stationary observer \(O\) are placed near reflecting surface moving away from the source with velocity \(2\;m{\rm{/}}s\) as shown in figure. Velocity of sound waves in air \(v = 330\;m{\rm{/}}s\). The apparent frequency of echo is
354698 A train moving at a speed of \(200\;m{s^{ - 1}}\) towards stationary object emits a sound of frequency \(1000\;Hz\). Some of the sound reaching the object gets reflected back to the train as echo. The frequency of the echo as detected by the driver of the train is : (speed of sound in air is \(300\;m{s^{ - 1}}\) )
354699 A source of sound A emitting waves of frequency \(1800\;Hz\) is falling towards ground with a terminal speed \(v\). The observer \(B\) on the ground directly beneath the source receives waves of frequency \(2150\;Hz\). The source A receives waves, refelected from ground of frequency nearly ( speed of sound \( = 343\;m/s\))
354701
A stationary sound source \(S\) of frequency \(334\;Hz\) and a stationary observer \(O\) are placed near reflecting surface moving away from the source with velocity \(2\;m{\rm{/}}s\) as shown in figure. Velocity of sound waves in air \(v = 330\;m{\rm{/}}s\). The apparent frequency of echo is
354698 A train moving at a speed of \(200\;m{s^{ - 1}}\) towards stationary object emits a sound of frequency \(1000\;Hz\). Some of the sound reaching the object gets reflected back to the train as echo. The frequency of the echo as detected by the driver of the train is : (speed of sound in air is \(300\;m{s^{ - 1}}\) )
354699 A source of sound A emitting waves of frequency \(1800\;Hz\) is falling towards ground with a terminal speed \(v\). The observer \(B\) on the ground directly beneath the source receives waves of frequency \(2150\;Hz\). The source A receives waves, refelected from ground of frequency nearly ( speed of sound \( = 343\;m/s\))
354701
A stationary sound source \(S\) of frequency \(334\;Hz\) and a stationary observer \(O\) are placed near reflecting surface moving away from the source with velocity \(2\;m{\rm{/}}s\) as shown in figure. Velocity of sound waves in air \(v = 330\;m{\rm{/}}s\). The apparent frequency of echo is
354698 A train moving at a speed of \(200\;m{s^{ - 1}}\) towards stationary object emits a sound of frequency \(1000\;Hz\). Some of the sound reaching the object gets reflected back to the train as echo. The frequency of the echo as detected by the driver of the train is : (speed of sound in air is \(300\;m{s^{ - 1}}\) )
354699 A source of sound A emitting waves of frequency \(1800\;Hz\) is falling towards ground with a terminal speed \(v\). The observer \(B\) on the ground directly beneath the source receives waves of frequency \(2150\;Hz\). The source A receives waves, refelected from ground of frequency nearly ( speed of sound \( = 343\;m/s\))
354701
A stationary sound source \(S\) of frequency \(334\;Hz\) and a stationary observer \(O\) are placed near reflecting surface moving away from the source with velocity \(2\;m{\rm{/}}s\) as shown in figure. Velocity of sound waves in air \(v = 330\;m{\rm{/}}s\). The apparent frequency of echo is