Tag: sound waves are longitudinal waves

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

Which of the following equations represents a wave travelling along  $Y$-axis ?

  1. $x = A \sin ( k y - \omega t )$
  2. $y = A \sin ( k x - \omega t )$
  3. $y = A \sin k y \cos \omega t$
  4. $y = A \cos k y \sin \omega t$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A wave traveling along the Y-axis must have its displacement as a function of (y +/- vt). Option A represents a wave where the displacement x is a function of (y - vt).

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

State whether the given statement is True or False :

If a pebble is thrown into the water the ripples on the surface of water are created due to translatory motion of the water particles.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

when the pebble is thrown in water the disturbance created travels in all outwards directions over the surface of the water in the form of ripples these ripples are circular in shape .

so the statement is false .
so answer is B.

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

When a tuning fork vibrates, the waves produced in the stem are:

  1. longitudinal

  2. transverse

  3. both (a) and (b)

  4. none of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

When tuning fork is sounded by striking its one end then the prongs vibrate in and out and stem vibrate up and down. Hence, vibration of prongs are transverse and those of stem are longitudinal. 

Hence Option A is correct

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

Water waves are

  1. longitudinal

  2. transverse

  3. neither longitudinal nor transverse

  4. both longitudinal and transverse
Reveal answer Fill a bubble to check yourself
D Correct answer
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.

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

In a slinky

  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
Reveal answer Fill a bubble to check yourself
A Correct answer
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.

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

Waves on water surface are

  1. Longitudinal

  2. Transverse

  3. Combination of longitudinal and transverse

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
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. 

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

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

  1. amplitude

  2. wave velocity

  3. frequency

  4. wavelength
Reveal answer Fill a bubble to check yourself
B Correct answer
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.