Help please urgently....both questions
45. The linear distance between the compression and the adjacent rarefaction is 0.8 m. The wavelength of the longitudinal wave is : (a) 0.8 m (b) 1.6 m (c) 0.4 m (d) 3.2 m 46. A broadcasting station transmits waves of frequency 71 x 10^4 Hz with a speed of 3 x 10^8 m/s. The wavelength of the wave is : (a) 418.8m (b) 324.6m (c) 208.4m (d) 422.5m
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Answer:
45 - 1.6 m
46 - 422.5 m
Explanation:
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45. The linear distance between the compression and the adjacent rarefaction is 0.8 m. The wavelength of the longitudinal wave is : (a) 0.8 m (b) 1.6 m (c) 0.4 m (d) 3.2 m 46. A broadcasting station transmits waves of frequency 71 x 10^4 Hz with a speed of 3 x 10^8 m/s. The wavelength of the wave is : (a) 418.8m (b) 324.6m (c) 208.4m (d) 422.5m