Question

Statements given below are incorrect. Write the statements correctly.
a) A flat sound has high frequency than the shrill sound.
b) The speed of sound in air is 1500 m/s
c) The frequency of infrasonic sound is more than 20000 hertz.
26. The bulb in the circuit shown does not glow. Can you identify the problem? And what should you do

Answer 1

Answer:

a) A flat sound has low frequency than the shrill sound.

b) The speed of sound in air is 343 metres per second.

c) The frequency of ultrasonic sound is more than 20000 Hertz.

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