Introduction to Sound

Q. The __________ converts sound signals to electrical signals.​

Q.

If small bits of paper are placed on a drum why do they jump when the drum is struck?

Q. Which of the following consists of a thin membrane in the ear that starts vibrating on receiving sound waves?

1. Cochlea
2. Pinna
3. Eardrum
4. Ear canal

Q.

A guitar has Strings of different thickness

1. To produce sounds of different quality or timbre

2. To produce sounds of different pitch with the thickest string producing the shrillest sound

3. To produce sounds of different loudness with the thickest string producing the softest sound

4. To produce sounds of different loudness with the thickest string producing the loudest sound

5. To produce sounds of different pitch with the thinnest string producing the shrillest sound

Q.

We can easily hear the sound of an approaching train by putting your ear on the track well before you could hear its sound in the air. Why?

1. Air is less dense to propagate sound

2. Sound travels faster in gases than solids

3. None of these

4. Sound travels faster in solids than gases