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Volume or Loudness

Question 7The...

Question

Question 7
The loudness of sound is determined by the

(a) Amplitude of vibration
(b) Ratio of amplitude and frequency of vibration
(c) Frequency of vibration
(d) Product of amplitude and frequency of vibration

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Solution

The answer is (a).
Loudness depends on the amplitude of the vibraiton. Frequecy determines the pitch of the sound and not the loudness.

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Similar questions

Q. Question 7
The loudness of sound is determined by the

(a) Amplitude of vibration
(b) Ratio of amplitude and frequency of vibration
(c) Frequency of vibration
(d) Product of amplitude and frequency of vibration

Q. Question 5
In order to reduce the loudness of a sound we have to

(a) Decrease its frequency of vibration of the sound.
(b) Increase its frequency of vibration of the sound.
(c) Decrease its amplitude of vibration of the sound.
(d) Increase its amplitude of vibration of the sound.

Q. The amplitude of vibration and frequency can abruptly change in a what kind of sound?

Q. Figure shows three different modes of vibration of a string of length l.
(i) Which of the vibration is of largest amplitude?
(ii) Which of the vibration is of least frequency?
(iii) What is the ratio of frequency between (a) and (c)?
(iv) What is the ratio of wavelength between (b) and (a)

State whether the following statements are true or false:

(a) Sound cannot travel in vacuum.

(b) The number of oscillations per second of a vibrating object is called its time-period.

(c) If the amplitude of vibrations is large, sound is feeble.

(d) The lower the frequency of vibration, the higher is the pitch.

(e) If the amplitude of vibrations is doubled, the loudness of sound also gets doubled.

(f) When the amplitude of vibrations is halved, the loudness of sound becomes one-fourth.

(g) Unwanted or unpleasant sound is termed as music.

(h) Noise pollution may cause partial hearing impairment.

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Volume or Loudness

Standard VII Physics

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