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
Answer:D
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