Question

A. Choose the correct answer.
1. Which of the following is the main function of cochlea?
a. Amplifies the sound
b.converts the sound to electric signal
c. Both (a) and (b)
d. None of these
2. Which of the following characteristics of sound would result in an increase in
loudness?
a. Frequency
b. Amplitude
c. Pitch
d.speed
3. Which of the following is the unit of frequency?
a. Metre
b. Hertz
c. Second
d.newton
4. In which of the following materials, is the speed of sound minimum?
a. Air
b. Water
c. Steel
d. none of this
5. Loud noises that continue for a prolonged period can cause______
a. high blood
pressure
b. deafness
c.sleeplessness
d. all of these
​

Answer 1

Answer:

1. a)

2. b)

3. c)

4. c)

5. b)

Answer 2

Answer:

1. Amplifies the sound
2. Amplitude
3. Pitch
4. Steel
5. . all of these

Explanation:

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