We cannot hear beats.when beat frequency is more than 10.why?

Dogs can hear sounds with frequency more than 20, 000 Hz.

We can respond respond to the frequency of sound more than ……….. Hertz and less than …………. Hertz.

Human ear cannot hear those mechanical waves whose frequency lies in the frequency range:

Why no beats can be heard if the frequencies of the two interfering waves differ by more than ten?

Two sitarstrings A and B playing the note ‘Ga’ are slightly out of tune and produce beats of frequency 6 Hz. The tension in the string A is slightly reduced and the beat frequency isfound to reduce to 3 Hz. If the original frequency of A is 324 Hz, what is the frequency of B?

To hear beats,it is essential to have two frequencies very close to each other.Why?

Ethylamine is more basic than ammonia. Why ?

Ethylamine is more basic than ammonia. Why ?