Question

In the phenomenon of propagation of sound in air:

• A. Temperature remains constant
• B. Heat remains constant
• C. Pressure remains contant
• D. Both A and B

Answer 1

The correct option is D

Both A and B

1. The sound wave is a longitudinal mechanical wave.
2. The medium particle vibrates due to pressure difference, so pressure does not remain constant but heat and temperature remain constant.
3. So option D is the correct option.