Question

Two sound waves A and B have same amplitude and same wave pattern, but their frequencies are 60 Hz and 120 Hz respectively, then :

• A. A will be shriller and B will be grave
• B. A will be grave and B will be shriller
• C. A will differ in quality than B
• D. A is louder than B

Answer 1

Answer:

B. A will be grave and B will be shriller

• Sound wave A with a frequency of 60 Hz will produce a lower pitch sound, which is perceived as grave or deeper.

• Sound wave B with a frequency of 120 Hz will produce a higher pitch sound, which is perceived as shriller or more piercing.

In general, the higher the frequency, the higher the pitch, and vice versa.