Physics
Related Questions
Name the waves used for sound ranging. State one reason for their use. Why are the waves mentioned by you not audible to us?
What is 'SONAR'? State the principle on which it is based.
The wavelength of waves produced on the surface of water is 20 cm. If the wave velocity is 24 ms-1, calculate (i) the number of waves produced in one second and (ii) the time in which one wave is produced.
Calculate the minimum distance in air required between the source of sound and the obstacle to hear an echo. Take speed of sound in air = 350 ms-1