EASY
Earn 100

The maximum displacement of a body from its mean position is called .

50% studentsanswered this correctly

Important Questions on Sound

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.
HARD
Science>Physics>Sound>Amplitude, Time Period and Frequency of a Vibration
A wire length 1 m and mass 2 g is in unison with a tuning fork of frequency 300 Hz. Calculate the tension produced in the wire.
MEDIUM
Science>Physics>Sound>Amplitude, Time Period and Frequency of a Vibration
What is the unit of sound? 
EASY
Science>Physics>Sound>Amplitude, Time Period and Frequency of a Vibration
Waves inside a gas are
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
If the frequency of wave is tripled, then its wave length:
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

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
Define the characteristic of a sound that distinguishes a shrill sound from a hoarse sound.
EASY
Science>Physics>Sound>Amplitude, Time Period and Frequency of a Vibration
Define the term frequency.
HARD
Science>Physics>Sound>Amplitude, Time Period and Frequency of a Vibration
If a key of a piano is first struck gently and then much harder, how will the loudness and pitch of the sound change?
EASY
Science>Physics>Sound>Amplitude, Time Period and Frequency of a Vibration
How are loudness and amplitude related?
EASY
Science>Physics>Sound>Amplitude, Time Period and Frequency of a Vibration
Define the term amplitude.
EASY
Science>Physics>Sound>Amplitude, Time Period and Frequency of a Vibration

The waveforms of some sounds are given below. Answer the questions that followed.
Question Image

 Identify the sounds with the same loudness.

HARD
Science>Physics>Sound>Amplitude, Time Period and Frequency of a Vibration
Why does the pitch of the sound increases when a nail is hammered into a wall?
EASY
Science>Physics>Sound>Amplitude, Time Period and Frequency of a Vibration
Write two differences between loudness and pitch.
MEDIUM
Science>Physics>Sound>Amplitude, Time Period and Frequency of a Vibration
A pendulum oscillates 40 times in 4 seconds. Find its time period and frequency.
EASY
Science>Physics>Sound>Amplitude, Time Period and Frequency of a Vibration

Define the term loudness.

MEDIUM
Science>Physics>Sound>Amplitude, Time Period and Frequency of a Vibration
State the unit of loudness. Mention the effect of different loudness levels on human ears.