EASY
Earn 100

Define frequency and periodic time? Represent the relation between them by a formula.

Important Questions on Sound

MEDIUM
Science>Physics>Sound>Amplitude, Time Period and Frequency of a Vibration
What is the unit of sound? 
HARD
Science>Physics>Sound>Amplitude, Time Period and Frequency of a Vibration
A ball is moving uniformly in a circular path of radius 1 m with a time period of 1.5 s. If the ball is suddenly stopped at t=8.3 s, the magnitude of the displacement of the ball with respect to its position at t=0 s is closest to:
HARD
Science>Physics>Sound>Amplitude, Time Period and Frequency of a Vibration
A point particle is acted upon by a restoring force -kx3. The time period of oscillation is T when the amplitude is A. The time period for an amplitude 2A will be:
HARD
Science>Physics>Sound>Amplitude, Time Period and Frequency of a Vibration

If the particle starts its motion from mean position, the phase difference between displacement and acceleration is ____.

MEDIUM
Science>Physics>Sound>Amplitude, Time Period and Frequency of a Vibration

The linear distance between a consecutive compression and rarefaction in longitudinal wave is

EASY
Science>Physics>Sound>Amplitude, Time Period and Frequency of a Vibration
The wave having compression and rarefaction is known as
EASY
Science>Physics>Sound>Amplitude, Time Period and Frequency of a Vibration
On an average, a human heart is found to beat 72 times a minute. Its frequency and period are
MEDIUM
Science>Physics>Sound>Amplitude, Time Period and Frequency of a Vibration
Draw a graph between displacement from mean position and time for a body executing free vibration in a vacuum.
EASY
Science>Physics>Sound>Amplitude, Time Period and Frequency of a Vibration
If the frequency of wave is tripled, then its wave length:
EASY
Science>Physics>Sound>Amplitude, Time Period and Frequency of a Vibration
Waves inside a gas are
EASY
Science>Physics>Sound>Amplitude, Time Period and Frequency of a Vibration

Complete the table using given statements associated with waves. 

  1. Particles vibrate in a direction parallel to the direction of propagation of waves. 
  2. Formed on the surface of solids and liquids.
  3. Crests and troughs are formed.
  4. Compression and rarefactions are formed.
Longitudinal waves Transverse waves
   

 

EASY
Science>Physics>Sound>Amplitude, Time Period and Frequency of a Vibration
The electron in the hydrogen atom is moving with a speed of 2.3×106 m s-1 in an orbit of 0.53 A0. Calculate the period of revolution of electron. π=3.142
EASY
Science>Physics>Sound>Amplitude, Time Period and Frequency of a Vibration
In __________________ waves, the individual particles of the medium move in a direction parallel to the direction of propagation of the disturbance.
EASY
Science>Physics>Sound>Amplitude, Time Period and Frequency of a Vibration
A part of longitudinal wave in which particle of medium are father away then the normal particles is called:
MEDIUM
Science>Physics>Sound>Amplitude, Time Period and Frequency of a Vibration
Give four differences between longitudinal waves and transverse waves. Represent them graphically as well.
EASY
Science>Physics>Sound>Amplitude, Time Period and Frequency of a Vibration
Why is a sound wave called a longitudinal wave?
EASY
Science>Physics>Sound>Amplitude, Time Period and Frequency of a Vibration
In the compression region of the medium case of longitudinal wave:
EASY
Science>Physics>Sound>Amplitude, Time Period and Frequency of a Vibration

A transverse wave consists of:

MEDIUM
Science>Physics>Sound>Amplitude, Time Period and Frequency of a Vibration
Draw a transverse wave and mark the positions of trough and crest. Also derive the relation between the velocity, frequency and wavelength of the wave.
MEDIUM
Science>Physics>Sound>Amplitude, Time Period and Frequency of a Vibration
Explain the formation of a longitudinal wave in a slinky.