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.	Audible wave
B.	infrasonic wave
C.	ultrasonic wave
D.	microwave
Answer» B. infrasonic wave

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