Which of the following statements is/are FALSE regarding the characteristics of sound waves?
(i) A loud sound wave has a lower amplitude compared to a soft sound wave.
(ii) A loud sound wave has a greater amplitude compared to a soft sound wave.
(iii) The frequency of a high-pitched sound is greater than that of a low-pitched sound. (iv) The frequency of a high-pitched sound is lower than that of a low-pitched sound.
-
A.
Both (i) and (iv)
-
B.
Both (i) and (iii)
-
C.
Both (ii) and (iv)
-
D.
Both (ii) and (iii)
Correct Answer:
A. Both (i) and (iv)
Explanation:
Sound waves are defined by specific physical properties where loudness is determined by amplitude and pitch is determined by frequency. A loud sound is characterized by a higher amplitude, meaning the wave carries more energy and creates greater pressure fluctuations, while a soft sound has a lower amplitude; therefore, statement (i) is false. Regarding pitch, high-pitched sounds are the result of high-frequency vibrations, whereas low-pitched sounds have lower frequencies. This makes statement (iv) false because it incorrectly claims high-pitched sounds have lower frequencies. Since statements (i) and (iv) are the only incorrect assertions, the correct option is Both (i) and (iv).
Click below to open Discussion & Feedback
0 Issues
Please
login to comment or Report Issues.