A wavelength of 0.3 m is produced in air and it travels at a speed of – McqOptions

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1.	A wavelength of 0.3 m is produced in air and it travels at a speed of 300 m/s. Then it will be an
A.	udible wave
B.	nfrasonic wave
C.	ltrasonic wave
D.	icrowave
Answer» B. nfrasonic wave

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