What are ultrasonics ?

What are ultrasonic waves ?

(a) What are infrasonic waves? Name two animals which produce infrasonic waves. (b) What are ultrasonic waves? Name two animals which can produce ultrasonic waves

What is an ultrasonic sound?

What is an ultrasonic sound?

What is the range of frequencies of audio waves, infrasonics and ultrasonics ?

The wavelength of a microwave and that of an ultrasonic wave are equal. What is the ratio of their frequencies?

Why does ultrasonic wave not exhibit polarisation?

Why does ultrasonic wave not exhibit polarisation?