A. 34m/s
B. 3 ×10^6m/s
C. 3 ×10^8m/s
D. 3 × 10^-8m/s

Correct Answer:

Option C – 3 ×10^8m/s

Explanation

A radio wave is an electromagnetic wave which travels with a constant velocity of 3 × 108m/s

SEE ALSO  The mass of water vapour in a given volume of air is 0.05g at 20°C, while the mass of water vapour required to saturate it at the same temperature is 0.15g. Calculate the relative humidity of the air.

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