The speed of sound in air at NTP is 330 m/s. The period of sound wave of wavelength 66 cm is ……………
The speed of sound in air at NTP is 330 m/s.
The period of sound wave of wavelength 66 cm is …………………
(A) 0.2 s
(B) 0.1
(C) 0.1 × 10-2 s
(D) 0.2 × 10-2 s
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