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A uniform string resonates with a tuning fork, at a maximum tension of 32 N. If it is divided into two segments by placing a wedge at a distance onefourth of length from one end, then to resonance with same frequency the maximum value of tension for string will be

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Important Questions on Waves

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Gamma Question Bank for Medical Physics>Chapter 15 - Waves>Assignment>Q 32
If in a stationary wave the amplitude corresponding to antinode is 4 cm, then the amplitude corresponding to a particle of medium located exactly midway between a node and an antinode is
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Gamma Question Bank for Medical Physics>Chapter 15 - Waves>Assignment>Q 33
A uniform string of fundamental frequency of vibration f is divided into two segments by means of a bridge. If f1 and f2 are fundamental frequencies of these segments then
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Gamma Question Bank for Medical Physics>Chapter 15 - Waves>Assignment>Q 34
Two sound waves of intensity 2 W m-2 and 3 W m-2 meet at a point to produce a resultant intensity 5 W m-2. The phase difference between two waves is
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Gamma Question Bank for Medical Physics>Chapter 15 - Waves>Assignment>Q 35
The two waves of the same frequency moving in the same direction give rise to
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Gamma Question Bank for Medical Physics>Chapter 15 - Waves>Assignment>Q 36
The string of a violin emits a note of 205 Hz at its correct tension. The string is tightened slightly and then it produces six beats in two seconds with a tuning fork of frequency 205 Hz. The frequency of the note emitted by the taut string is
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Gamma Question Bank for Medical Physics>Chapter 15 - Waves>Assignment>Q 37
When two tuning forks (fork 1 and fork 2) are sounded simultaneously, 4 beats per second are heard. Now, some tape is attached on the prong of the fork 2. When the tuning forks are sounded again, 6 beats per second are heard. If the frequency of fork 1 is 200  Hz, then what was the original frequency of fork 2?
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Gamma Question Bank for Medical Physics>Chapter 15 - Waves>Assignment>Q 38
The driver of a car travelling with speed 30 m s-1 towards a hill sounds a horn of frequency 600 Hz. If the velocity of sound in air is 330 m s-1, the frequency of reflected sound as heard by driver is
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Gamma Question Bank for Medical Physics>Chapter 15 - Waves>Assignment>Q 39
A train moving at a speed of 220ms-1 towards a stationary object, emits a sound of frequency 1000Hz. 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 330ms-1)