Question

Which of the following statements is true / false about the speed of sound in different mediums at 25 ° C? A. In helium gas, the speed of sound is 965 km/s. B. In hydrogen gas, the speed of sound is 1284 m/s.

• A. Neither A nor B is true.
• B. Only B is true.
• C. Only A is true.
• D. Both A and B are true.

Answer 1

Answer: (B)