What is the frequency of infrasonic sound ?

What is the frequency of a sound wave whose time-period is 0.005s?

A siren emitting a sound of frequency 2000 Hz moves away from you towards a cliff at a speed of 8 m/s. (a) What is the frequency of the sound you hear coming directly from the siren. (b) What is the frequency of sound you hear reflected off the cliff. Speed of sound in air is 330(m)/(s) .

A siren emitting a sound of frequency 1000 H_(Z) moves away from you towards a cliff at a speed of 10 m//s . (a) What is the frequency of the sound you hear coming directly from the sirven ? (b) What is the frequency of sounds you hear reflected off the cliffb ? (c) What beat frequency would you hear ? Take the speed of sound in air as 330 m//s .

(a) What is the difference between infrasonic waves and ultrasonic waves? (b) Choose the infrasonic waves and ultrasonic waves from the following frequencies: (i) 10,000 Hz (ii) 30,000 Hz (iii) 18 Hz (iv) 50,000 Hz (v) 10 Hz

A source of sound gives 5 beats when sounded with another source of frequency 100 Hz. The second harmonic of the source together with a source of frequency 200 Hz gives 10 beats s^(-1) . What is the frequency of the source?

What are infrasonics ?

What are infrasonics ?