SOUND REVISION TEST

Humans can hear sound in the range of-

• 20-2000 Hz

• 2 kHz- 20 Khz

• 20- 20,000 Hz

• 200-20000 Hz

Vibration is also known as-

• Vibratory motion

• Translatory Motion

• Oscillatory Motion

• None of the Above

Sound is produced by?

• Vibrating and non-vibrating Objects

• Non - Vibrating Objects

• Sound has no relation with vibration

• Vibrating objects only

An Ultrasound Frequency works at a frequency -

• Higher than 20,000 Hz

• Lower than 20 Hz

• Lower than 20,000 Hz

• None of the Above

Loudness is measured in ?

• Hertz

• Seconds

• Noise

• Decibel

Pitch of a sound is determined by its ?

• Frequency

• Amplitude

• Speed

• Loudness

A pendulum oscillates 20 times in 4 seconds. Find its time period.

• 5 sec

• 0.001 sec

• 0.2 sec

• 0.1 sec

Loudness of a sound is determined by ?

• Frequency

• Amplitude

• Noise

• Pitch

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

• amplitude

• frequency

• time period

• oscillation

In which medium , sound travels the fastest ?

• solid

• liquid

• gas

• vaccum