Tag: study of sound

Questions Related to study of sound

Water waves are

physics study of sound types of waves sound as a wave of disturbance sound waves are longitudinal waves

  1. longitudinal

  2. transverse

  3. neither longitudinal nor transverse

  4. both longitudinal and transverse

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Correct Option: D
Explanation:

Water waves are both longitudinal and transverse. As a wave travels throught he water, the particles travel in clockwise circles. The radius of the circles decreases as the depth into the water.

Hence option (D) is correct.

When we pluck the wire of a sitar, the waves produced in the air are ___________.

physics study of sound types of waves sound as a wave of disturbance sound waves are longitudinal waves

  1. longitudinal

  2. transverse

  3. sometimes longitudinal and sometimes transverse

  4. electromagnetic

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Correct Option: B
Explanation:

When we pluck the wire of a sitar, the wave produced in the wire are transverse wave.

Hence option (B) is correct.

In a slinky

physics study of sound types of waves sound as a wave of disturbance sound waves are longitudinal waves

  1. Both transverse pulse as well as longitudinal pulse can be generated

  2. Both types of pulse cannot be generated

  3. Only a transverse pulse can be generated

  4. Only a longitudinal pulse can be generated

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Correct Option: A
Explanation:

Slinky is a dress which is tight-fitting, elastic and flexible. By fixing one end on a rigid support and holding the other end waves can be generated. By moving it back and forth, longitudinal waves can be generated. By moving up and down, transverse can be made.

Waves on water surface are

physics study of sound types of waves sound as a wave of disturbance sound waves are longitudinal waves

  1. Longitudinal

  2. Transverse

  3. Combination of longitudinal and transverse

  4. None of these

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Correct Option: C
Explanation:

Water surface exhibits a combination of both longitudinal and transverse waves. When the wave travels through the water, the particles travel in a circular path, both parallel and perpendicular to the direction of wave propagation. 

When you speak to your friend, the quantity having a non unique value in the sound produced is

physics study of sound types of waves sound as a wave of disturbance sound waves are longitudinal waves

  1. amplitude

  2. wave velocity

  3. frequency

  4. wavelength

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Correct Option: B
Explanation:

Amplitude and frequency depend on source and as frequency is different, wavelength also has to be different to maintain same speed as speed is constant for a medium in a particular condition.

Which one of following is not a longitudinal wave?

physics study of sound types of waves sound as a wave of disturbance sound waves are longitudinal waves

  1. Ultrasonic wave

  2. Infrasonic wave

  3. Infrared wave

  4. Seismic wave

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Correct Option: C
Explanation:

Ultrasonic wave , Infrasonic wave and Seismic wave are longitudinal waves

Infrared wave is Transverse wave
Therefore Infrared wave is not a longitudinal wave
Therefore correct option is $C$

Velocity of a transverse wave along a stretched string is proportional to ___________. (T=tension in the string).

physics study of sound types of waves sound as a wave of disturbance sound waves are longitudinal waves

  1. $\sqrt{T}$

  2. $\displaystyle T$

  3. $\displaystyle\frac{1}{\sqrt T}$

  4. $\displaystyle\frac{1}{T}$

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Correct Option: A
Explanation:

Velocity of transverse wave $v =\sqrt{\dfrac{T}{\mu}}$

where $T$ is the tension in the string and $\mu$ is the mass of string per unit its length.
$\implies$ $v \propto \sqrt{T}$

All waves can be classified into two categories which are

physics study of sound types of waves sound as a wave of disturbance sound waves are longitudinal waves

  1. Sound waves and electromagnetic waves

  2. Transverse waves and electromagnetic waves

  3. Longitudinal waves and electromagnetic waves

  4. Transverse waves and longitudinal waves

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Correct Option: D
Explanation:

All waves can be classified into two categories . They are Transverse and longitudinal waves

A transverse wave is a wave in which particles of the medium move in a direction perpendicular to the direction that the wave moves.
A longitudinal wave is a wave in which particles of the medium move in a direction parallel to the direction that the wave moves
Therefore option $D$ is correct

Transverse nature of light was confirmed by the phenomenon of the

physics study of sound types of waves sound as a wave of disturbance sound waves are longitudinal waves

  1. refraction of light

  2. diffraction of light

  3. dispersion of light

  4. polarization of light.

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Correct Option: D
Explanation:

The phenomenon of polarization confirms that light is a transverse wave because for polarization, the light should have different components oscillating in the different planes and a transverse wave has the oscillations perpendicular to the direction of propagation of the wave.

Chronometer is?

physics study of sound types of waves sound as a wave of disturbance sound waves are longitudinal waves

  1. An clock for determining the longitude of a vessel at sea

  2. An instrument for changing or reversing the direction of electric current

  3. An instrument for measuring the direction and velocity of wind

  4. An instrument for comparing intensities of colours

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Correct Option: A
Explanation:

Chronometer is an instrument for measuring time accurately in spite of motion or variations in temperature, humidity, and air pressure.So it can be used a a clock for determining the longitude of a vessel at sea.