(i) Name the system which enables us to locate underwater objects by transmitting ultrasonic waves and detecting the reflecting impulse.

(ii) What are acoustically measurable quantities related to pitch and loudness?

Open in App

Solution

(i) The system which enables us to locate underwater objects by transmitting ultrasonic waves and detecting the reflecting impulse is called sound navigation and ranging or SONAR. Here, ultrasonic waves from a ship are transmitted in all directions. The reflected waves received in the receiver gives the distance and position of the object (e,g, submarine etc.) in water.

(ii) The acoustically measurable quantity related to pitch is frequency and to loudness is intensity of sound.

Suggest Corrections

Similar questions

Name the characteristic which enables one to distinguish the sound of two musical instruments even if they are of the same pitch and same loudness.

(a) Which of the following quantity determines the loudness of a sound wave ?

(i) wavelength, (ii) frequency, and (c) amplitude.

(b) How is loudness related to the quantity mentioned above in part (a) ?

Join BYJU'S Learning Program