Sound

Sound

By Shanmuka Sai Teja​

Multiple Choice

Amplitude SI Unit is Metre

• true

• false

Multiple Choice

A woman’s voice generally has a ________ pitch than a man’s voice. This is because the frequency of a woman’s voice is ________________.

• flat, flatness

• low, lower

• high, higher

• blunt, bluntness

Multiple Choice

Pitch denotes the ____________ of a sound.

• broadness

• narrowness

• flatness

• None of these

Multiple Choice

Sound can be characterized by the _____________.

• eye

• pitch

• Energy

• Both a and c

Multiple Choice

An object oscillates 50 times in one second. What would be its frequency?

• 0.2 HZ

• 0.02 HZ

• 40 HZ

• 50 HZ

Multiple Choice

If the loudness of the sound is 5 db, the amplitude will be 50 db

• True

• False

Multiple Choice

An object must have a frequency of what so that it is heard by humans

• 200 HZ

• 8 HZ

• 20 HZ

• 40 HZ

• 15 HZ

Multiple Choice

Rahul struck the guitar string, it vibrated 55 times in 5 seconds. What will be the frequency of the guitar string?

• 52 HZ

• 100 HZ

• 11 HZ

• 50 HZ

Multiple Choice

The frequency of the tabla membrane was 40 Hertz in 5 Seconds. How many the times would the membrane must be vibrated?

• 200

• 8

• 400

• 50

• 20

Multiple Choice

Which instrument always produces vibrations of the same frequency?

• A speaker

• A bell jar

• An electric bell

• A turning fork