Question

A radio station transmitting at a frequency of 250KHz emits waves of wavelength 2km. Find the velocity of the radio wave.

a. A. 500 m/s
b. B. 1,000 m/s
c. C. 250,000 m/s
d. D. 125,000 m/s

Answer 1

The velocity of the radio wave is 500,000 m/s (Option C).

Step-by-step explanation:

To find the velocity of a wave, we use the equation:

velocity = wavelength * frequency

Given that the wavelength is 2 km (2000 m) and the frequency is 250 kHz (250,000 Hz), we can substitute these values into the equation:

velocity = 2000 m * 250,000 Hz

Calculating the result gives us a velocity of 500,000,000 m/s, which can be written as 500,000 km/s. So the velocity of the radio wave is 500,000 m/s (Option C).