Question

The image shows two sound waves a and b. Select the correct statements given below regarding the two waves.

• A. Wave 'a' has higher pitch than that of wave 'b'.
• B. Wave 'b' has higher pitch than that of wave 'a'.
• C. Wave 'a' has higher frequency than that of wave 'b'.
• D. Wave 'b' has higher frequency than that of wave 'a'.

Answer 1

Answer: (B), (D)

The correct options are
B Wave 'b' has higher pitch than that of wave 'a'.
D Wave 'b' has higher frequency than that of wave 'a'.

It can be noticed that wave 'b' has higher frequency than that of wave 'a' as it completes more oscillations in a fixed interval of time.

Pitch is the shrillness of the sound. Sound with a higher frequency has a higher pitch. So, wave 'b' will have higher pitch than that of wave 'a'.