Physics

Wave Motion

536 Questions

Wave motion questions cover the principles of traveling and stationary waves, including their equations and intensities. The topics explore interference patterns, phase differences, and electromagnetic radiation speeds. Mastery of these concepts is vital for physics sections in engineering and civil services examinations.

Wave interferenceStanding wavesPhase differenceElectromagnetic radiationWave equations

Wave Motion Questions

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

Wave in which particles of the medium oscillate to and from about their mean position is

  1. Transverse wave

  2. Longitudinal wave

  3. Oscillatory wave

  4. None
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

By definition a wave in which the particles of the medium oscillate to and fro about their mean positions in the direction of propagation is known as longitudinal wave. It can be produced in any medium.

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

The waves in which the particles of the medium vibrate in a direction perpendicular to the direction of wave motion is known as

  1. Transverse wave

  2. Propagated waves

  3. Longitudinal waves

  4. Stationary waves
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In transverse waves, particle of the medium vibrate in a direction perpendicular to the direction of wave motion.

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

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

  1. Longitudinal

  2. Transverse

  3. Sometimes longitudinal and sometimes transverse

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

A transverse wave is a moving wave that consists of oscillations occurring perpendicular (or right angled) to the direction of energy transfer. If a transverse wave is moving in the positive x-direction, its oscillations are in up and down directions that lie in the yz plane. In any pluck string instrument we are actually doing the same.

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

A transverse wave is a wave that consists of oscillations that are 

  1. parallel to the direction of wave propagation

  2. perpendicular to the direction of wave propagation

  3. radial to the direction of wave propagation

  4. none of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A transverse wave is a wave that consists of oscillations that are perpendicular to the direction of wave propagation

The correct option is (b)

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

Transverse mechanical wave can travel in :

  1. Iron rod

  2. Hydrogen gas

  3. Water

  4. Stretched string
Reveal answer Fill a bubble to check yourself
A,C,D Correct answer
Explanation

Transverse wave is that wave which vibrate the particles of medium in the medium in the $\bot $ar direction to the direction of wave propegation.

Exp :-    $\left( 1. \right) $ A wave on string.
             $\left( 2. \right) $ Ripples on water waves.
             $\left( 3. \right) $ EM wave.
             $\left( 4. \right) $ In metals like iron rod.

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

Choose the correct options for longitudinal wave

  1. maximum pressure variation is BAk

  2. maximum density variation is pAk

  3. pressure equation and density equation are in phase

  4. pressure equation and displacement equation are out of phase
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In a longitudinal wave, the pressure variation and density variation are both proportional to the displacement gradient, causing them to be in phase with each other.

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

In a stationary wave represented by $y = a \sin wt \cos kx$, amplitude of the component progressive wave is

  1. $\frac{a}{2}$
  2. $a$
  3. $2a$
  4. $a^2$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A stationary wave y = a sin(wt) cos(kx) can be written as the sum of two progressive waves: y = (a/2) sin(wt - kx) + (a/2) sin(wt + kx). Therefore, the amplitude of each component wave is a/2.

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

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.