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consider the following statements regarding Sound waves—
1. Waves which lies in the frequency range 20Hz to 2000 Hz are called audible waves
2. Infrasonic waves are produced by sources Of bigger size as earth quake ,volcanic eruptions etc
3. Waves having frequencies greater than 20000 Hz are called ultrasonic
Which of the above statements is/are true?Choose the correct answer using the codes Given below:
1 and 3 only
2 and 3 only
1,2and 3
none of these
sound waves which lies in the frequency range of 20Hz to 20000Hz are called audible waves hence statement one is wrong Statement two is correct Ultrasonic waves has a frequency greater than 20000 Hz ,hence statement three is right .
By: Abhipedia ProfileResourcesReport error
Rishabh Goyal
Option A, should add word ONLY! Else, 20-2000 is also in audible range
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