Ncert solutions

Ncert solutions

Grade 8

Sound | Exercise

Question 4

Q 4) Fill in the blanks with suitable words.

(a) Time taken by an object to complete one oscillation is called __________.

(b) Loudness is determined by the __________ of vibration.

(c) The unit of frequency is __________.

(d) Unwanted sound is called __________ .

(e) Shrillness of a sound is determined by the __________ of vibration.

Solution 4:

(a) Time taken by an object to complete one oscillation is called time period.

(b) Loudness is determined by the amplitude of vibration.

(c) The unit of frequency is hertz (Hz).

(d) Unwanted sound is called noise.

(e) Shrillness of a sound is determined by the frequency of vibration.

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subject-cta

Question 4

Q 4) Fill in the blanks with suitable words.

(a) Time taken by an object to complete one oscillation is called __________.

(b) Loudness is determined by the __________ of vibration.

(c) The unit of frequency is __________.

(d) Unwanted sound is called __________ .

(e) Shrillness of a sound is determined by the __________ of vibration.

Solution 4:

(a) Time taken by an object to complete one oscillation is called time period.

(b) Loudness is determined by the amplitude of vibration.

(c) The unit of frequency is hertz (Hz).

(d) Unwanted sound is called noise.

(e) Shrillness of a sound is determined by the frequency of vibration.

Still have questions? Our expert teachers can help you out

Book a free class now

Want to top your science exam ?

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subject-cta
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