Answer in detail II — task. Science Test Space, Class 9.

1. List the applications of sound.

a. Ultrasonic sound waves can be used to remove minute .

b. of the metals are examined by ultrasonic sound.

2. Explain how does SONAR work?

a. SONAR - .

b. The transmitter produces and transmits .

Did you find an error?

15. Answer in detail II