Single correct option
Consider the following statements about sound:
1. Sound travels faster in water than in air.
2. Sound can travel through a vacuum.
Which of the statements given above is/are correct?
1. Sound travels faster in water than in air.
2. Sound can travel through a vacuum.
Which of the statements given above 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
Sound needs a material medium, and its speed is greater in denser, more elastic media: about 340 m/s in air and about 1500 m/s in water. It cannot propagate through a vacuum because there are no particles to carry the compressions and rarefactions. Only statement 1 is correct.
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