Standing Waves

IMPORTANT

Standing Waves: Overview

This topic covers concepts such as Standing Waves, Equation of Standing Waves, Nodes and Antinodes in Standing Waves, Open Organ Pipe, Fundamental Frequency of Open Organ Pipe, Harmonics and Overtones in Open Organ Pipe, etc.

Important Questions on Standing Waves

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IMPORTANT

In a sonometer wire the tension is maintained by suspending a 50.7 kg mass from the free end of the wire. The suspended mass has volume of 0.0075m​3. The fundamental frequency of the wire is 260Hz. Find the new fundamental frequency if the suspended mass is completely submerged in water

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What kind of wave is formed in organ pipes?

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How standing waves are formed in organ pipes?

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How are stationary waves formed in closed pipes and open pipes? Explain the various modes of vibrations and obtain relation for their frequencies.

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In case of a closed organ pipe which harmonic is the Pth overtone will be

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As an empty vessel is filled with water, its frequency:

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An open pipe of length 33 cm resonates with frequency of 1000 Hz . If the speed of sound is 330m/s, then this frequency is:

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An organ pipe  P1 closed at one end vibrating in its first overtone and another pipe P2 open at both ends vibrating in its third overtone are in resonance with a given tuning fork. The ratio of the length of P1 to that ofP2 is:

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A closed organ pipe of length L and an open organ pipe contain gases of densitiesρ1  and ρ2 respectively. The compressibility of gases is same in both the pipes which are vibrating in their first overtone with same frequency. The length of the open organ pipe is:

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A frequency of a sonometer wire is 100 Hz. When, after making length of its wire twice, the tension is increased, then its frequency becomes 75 Hz. The ratio of its initial and final tension is:

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The equation of a standing wave is y=2a sin100t cos0.1x, where y, a are in mm, t in second and x in metre. The velocity of the progressive waves producing it is:

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In a standing wave of frequency 1000 Hz, the distance between a node and the adjacent antinode is 10 cm. The velocity of the component waves is:

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A wave of frequency 100 Hz is sent towards the fixed end of a wire. When the wave returns after reflection, then a node is formed at a distance of 10 cm from the fixed end. The velocity of the incident (or reflected) wave is:

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What type of vibration are produced in a Sonometer wire?

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The displacement y of a particle executing periodic motion is given y= 4 cos 2(12t) sin (1000t) This expression may be considered to be a result of the superposition of :

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Tube A has both ends open while tube B has one end closed. Otherwise, they are identical. The ratio of fundamental frequency of tube A and B is,

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A wave of frequency 100 Hz is sent along a string towards a fixed end. When this wave travels back, after reflection, a node is formed at a distance of 10 cm from the fixed end of the string. The speeds of incident (and reflected) waves are

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A resonance pipe is open at both ends and 30 cm of its length is in resonance with an external frequency 1.1 kHz. If the speed of sound is 330 m s-1, which harmonic is in resonance?

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For the stationary wave y=4sinπx15cos96 πt , the distance between a node and the next antinode is

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The second overtone of an open pipe is in resonance with the first overtone of a closed pipe of length 2m. length of the open pipe is