Question

of the sound waves.
sounds.
C Fill in the blanks using the correct words.
1 Loudness of sound depends on
(frequency/amplitude)
2. Sounds of frequency above 20,000 Hz are called
(infrasonic/ultrasonic)
3. Time taken by a particle to complete one oscillation is called
(time period/frequency)
4. The Sl unit of
is hertz. (frequency/amplitude)
5. Infrasonic waves have a frequency of
(less than 20 Hz/more than 20,000 Hz)​

Answer 1

1. Amplitude

2. Ultrasonic

3. time period

4. frequency

5. less than 20 hz