Wave Motion

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What is the characteristic of transverse waves?

Particles of the medium execute simple harmonic motion about their mean position in a direction perpendicular to the direction of propagation of wave motion (correct)

Particles of the medium execute simple harmonic motion in the direction of propagation of wave motion

Particles of the medium execute simple harmonic motion in a circular motion

Particles of the medium execute simple harmonic motion in a random direction

What is the term for the portion of the medium raised temporarily above the normal position of rest of the particles of the medium when a transverse wave passes through it?

Trough

Crest (correct)

Wave

Particle

What type of waves can be transmitted through solids and set up on the surface of liquids?

Non-mechanical waves

Longitudinal waves

Mechanical waves

Transverse waves (correct)

What is the name of the type of waves that do not require a medium for their propagation?

Electromagnetic waves Signup and view all the answers

What is the type of wave motion exhibited by the movement of a string of a sitar or violin?

Transverse wave motion Signup and view all the answers

What occurs twice during each vibration of the medium?

Particles pass through their mean position Signup and view all the answers

What is the result of superposition of incident and reflected waves in a string?

Transverse stationary waves Signup and view all the answers

What is the velocity of particles at nodes in a stationary wave?

Zero Signup and view all the answers

What is the condition for a wave to be partially standing?

Amplitudes of component waves are not equal Signup and view all the answers

What is the formula for the wavelength of a string in its nth mode of vibration?

λ = 2L/n Signup and view all the answers

What is the frequency heard by the observer when a source of sound of frequency 500 Hz is moving towards the observer with a velocity of 30 m/s?

550 Hz Signup and view all the answers

A motor car blowing a horn of frequency 124 vibration/sec moves with a velocity of 72 km/hr towards a tall wall. What is the frequency of the reflected sound heard by the driver?

140 vibration/sec Signup and view all the answers

What is the frequency of the sound heard by an observer when a source of sound is stationary and the observer is moving towards the source with a velocity of 30 m/s?

500 Hz Signup and view all the answers

What is the beat frequency produced when two waves of frequencies 550 Hz and 530 Hz superimpose on each other?

20 Hz Signup and view all the answers

What is the velocity of the wave in a stationary wave?

Zero Signup and view all the answers

What is the necessary condition for the formation of distinct beats?

The frequencies of the two sources of sound should be nearly equal, with a difference of less than 10 Hz. Signup and view all the answers

What is the term used to describe the phenomenon of regular variation in intensity of sound with time at a particular position?

Beats Signup and view all the answers

What is the time interval between two successive beats?

Beat period Signup and view all the answers

What is the number of beats produced per second?

Beat frequency Signup and view all the answers

What happens when the intensity of sound becomes maximum again after becoming minimum once in between?

One beat is said to be formed Signup and view all the answers

When two waves of frequencies 550 Hz and 530 Hz superimpose on each other, what is the beat frequency produced?

20 Hz Signup and view all the answers

What is the ratio of maximum to minimum intensity in the beats when two waves of frequencies 380 Hz and 384 Hz superimpose on each other?

16 : 1 Signup and view all the answers

If two tuning forks have frequencies 380 Hz and 384 Hz respectively, what is the time interval between two consecutive maximum sounds?

1/8 sec Signup and view all the answers

What is the amplitude of the resultant wave when two waves of equal amplitudes superimpose on each other?

2a Signup and view all the answers

If a tuning fork of unknown frequency produces x beats per second with another tuning fork of known frequency n1, what is the unknown frequency?

n1 ± x Signup and view all the answers

When two tuning forks A and B give 4 beats per second when sounded together, what is the frequency of B if the frequency of A is 320 Hz?

324 Hz Signup and view all the answers

What is the minimum number of tuning forks required to produce 4 beats per second when sounded together?

2 Signup and view all the answers

What is the period of the beat frequency when two waves of frequencies 550 Hz and 530 Hz superimpose on each other?

1/10 s Signup and view all the answers

If 41 forks are arranged such that each produces 5 beats/sec when sounded with its near fork, what is the frequency of the beat heard by the observer?

5 Hz Signup and view all the answers

If the frequency of a tuning fork decreases when it is loaded with wax, what is the relationship between the original frequency and the new frequency?

n1 = n2 - x Signup and view all the answers