Question

7. Which of the following determines the loudness of a sound wave ?
(a) Wavelength (b) Frequency, or (c) Amplitude.
8. How is loudness related to the amplitude of a wave ?
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Answer 1

Answer:

7. Amplitude.

8. Amplitude determines the loudness of a wave. Greater the amplitude, greater is the loudness.

Explanation:

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Answer 2

Answer:

7 (c)

amplitude gives us about the loudness

8 loudness is related to amplitude because amplitude means the disturbance in medium which causes sound to be loud

and that's the answer

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