Sound 10

The maximum displacement of the particle for a wave is called

• Amplitude

• Wavelength

• Time Period

• Velocity

If the time taken to complete 2 waves is 4 seconds. Find the time period of this wave?

• 2 s

• 1 s

• 4 s

• 8 s

If 120 waves are emitted in 1 minute, then the frequency of this source is?

• 5 Hz

• 6 Hz

• 2 Hz

• 4 Hz

Find the velocity of a wave whose wavelength is 10 m and frequency is 2 Hz?

• 2 m/s

• 20 m/s

• 50 m/s

• 10 m/s

Find the frequency of a wave whose time period is 5 seconds?

• 5 Hz

• 0.5 Hz

• 0.2 Hz

• 2 Hz

The waves which need a medium to travel are called

• Light waves

• Mechanical Waves

• Non mechanical waves

• None of these

Light is a example of

• Mechanical Wave

• Longitudinal wave

• Siesmic wave

• Non Mechanical Wave

sound travels in the form of

• Longitudinal waves

• Disturbance

• Both A and B

• None of these

The region of high pressure and density in a medium during sound travel is called

• Rarefaction

• Compression

• Pressure point

• Density point

Astronauts cannot hear each other on the moon because

• Moon has no atmosphere

• They are wearing helmets

• Moon has less gravity compared to earth

• None of these