Question

What happens when two sound waves of frequencies differing by more than 10 Hz reach our ear simultaneously?

• A. beats are not produced
• B. the waves destroy each other's effect
• C. interference of sound does not take place.
• D. beats are produced but cannot be heard

Answer 1

The correct option is D beats are produced but cannot be heard

if the beat formation rate is too fast (more than 10 Hz) human ear could not distinguish the time interval of the two consicutive beats.