Sound and Vibration
Trending Questions
Larynx is also known as _____.
voice box
noise box
lungs
wind pipe
When the membrane of a drum is beaten, sound is produced, not only due to vibrations in the membrane but also due to vibrations in the whole body of the drum.
True
False
The skin of a drum on hammering produces vibratory motion.
True
False
State the characteristics of medium necessary for propagation of sound in air.
Statement 1: Sound vibrations make the ear drum vibrate, the ear drum sends a vibration to the inner ear, from there the signal goes to the brain.
Statement 2: Ear drum is a thin stretched membrane.
Statement 1 is true and is the correct explanation of statement 2
Statement 1 is true and is not the correct explanation of statement 2
Statement 1 is true and statement 2 is false
Statement 1 is false and statement 2 is true
An elastic rubber band is stretched between two points. Will it produce any sound?
Yes
Can't be said
None of these
No
- teeth
- vocal cords
- tongue
- lips
Sound is produced because of _______ of particle.
- random motion
vibrations
rotations
charge
Which of the following correctly supports the fact that bats can hunt at night?
They have an excellent eyesight.
They can smell their prey.
They use ultrasonic waves to detect the position of the prey.
They have excellent camouflage capability.
A rubber band tied between two ends is stretched and then left, a sound is heard due to:
the elastic nature of the band
both elastic nature as well as vibrations in the string
none of these
the to and fro motion i.e., vibration of the band
Sound is a/an
Longitudinal wave
Energy
Mechanical wave
Transverse wave
- Impaired vision
- Impaired hearing
- Loss of sense of touch
- Loss of sense of smell
Unit of intensity of sound is _______.
- metre
- decibel
- kelvin
- volt