The given table lists some characteristics of four sounds I, II, III, and IV. | ||
Sound | Amplitude (cm) | Frequency (Hz) |
I | 1 | 1 |
II | 3 | 4 |
III | 2 | 3 |
IV | 2 | 4 |
A) I and II
B) I and III
C) II and IV
D) III and IV
Correct Answer: D
Solution :
Loudness of a sound is given by its amplitude, i.e., by the maximum height of the peak of the sound wave. As amplitude increases, loudness also increases and vice-versa. It is clear from the given table that sounds III and IV have the same amplitude. Hence, their loudness is also the same. The correct answer is D.You need to login to perform this action.
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