Sound
Trending Questions
What is a mechanical wave? Explain with an example.
What part of human body is responsible for the voice production?
Sound waves cannot pass through
solid
liquid
gas
vacuum
Sound producing organ in humans is known as _________
What is the measure of how loud or soft a sound is called?
1. Compression and rarefaction involve changes in density and pressure.
2. Sound will become audible if a string is set into vibrations with a time period of 0.04 s on the surface of the moon.
3. Sound travels slower than light.
4. As the length of the vibrating body increases, the frequency increases.
- Both 1 and 4
- Both 2 and 3
- Both 1 and 3
- Both 2 and 4
Vibration of vocal cords of the larynx produces sound.
- True
- False
Identify the sound-producing organ in mammals.
Pharynx
Syrinx
Larynx
Adams apple
Give one example of longitudinal waves.
In air medium, sound is propagated
along a straight path
as a sound ray
as a longitudinal wave
none of the above
Write one word for the following:
Hammer-shaped ear bone of middle ear.
Statement 2: High surface temperature of the Moon restricts sound propagation.
- Only statement 1 is correct.
- Only statement 2 is correct.
- Both the statements are correct.
- Both the statements are incorrect.
Statement 2: Vocal cords vibrate to produce sound in humans.
- Only statement 1 is correct.
- Only statement 2 is correct.
- Both statements are incorrect.
- Both statements are correct.
How is the pitch of sound in a guiter changed if
(a) thin wire is used,
(b) wire under less tension is used ?
A vibrating drum produces ____ energy.
- Number of compression pulses only
- Number of rarefaction pulses only
- Number of compression and rarefaction pulses one after the other
- Vacuum only
- the sound will be heard at the surface of the earth during all seasons
- the sound will not be heard at the surface of the earth
- the sound will not be heard at the surface of the earth during the rainy season
- no sound will be heard on the earth or on the moon