Single correct option
Consider the following statements about sound:
1. The pitch of a sound depends on its frequency.
2. The loudness of a sound depends only on its frequency.
Which of the statements is/are correct?
1. The pitch of a sound depends on its frequency.
2. The loudness of a sound depends only on its frequency.
Which of the statements is/are correct?
- A. 1 only
- B. 2 only
- C. Both 1 and 2
- D. Neither 1 nor 2
Show answer and solution
Answer: (A) 1 only
Pitch is the sensation of how shrill or flat a sound is, and it is determined by frequency, so statement 1 is correct. Loudness depends mainly on the amplitude of vibration (and the sensitivity of the ear), not on frequency alone, so statement 2 is wrong. A thin string vibrating at high frequency gives a high pitch but not necessarily a loud sound.
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