To find the wavelength of the radio waves, you can use the formula:
wavelength = speed of light / frequency
The speed of light in a vacuum is approximately 3 x 10^8 meters per second. However, since radio waves usually travel through the atmosphere, we can use a slightly lower value of the speed of light, around 2.998 x 10^8 meters per second.
Given frequency: 1.2 x 10^3 kHz = 1.2 x 10^6 Hz
Using the formula, we can calculate the wavelength:
wavelength = (2.998 x 10^8 m/s) / (1.2 x 10^6 Hz) = 249.83 meters (rounded to two decimal places)
Therefore, the wavelength of the radio waves is approximately 249.83 meters.
To calculate the energy represented by a given frequency, you can use the equation:
energy = Planck's constant x frequency
Planck's constant is approximately 6.626 x 10^-34 joule-seconds.
Given frequency: 1.2 x 10^6 Hz
Using the formula, we can calculate the energy:
energy = (6.626 x 10^-34 J·s) x (1.2 x 10^6 Hz) = 7.9512 x 10^-28 Joules (rounded to four decimal places)
Therefore, the given frequency represents approximately 7.9512 x 10^-28 Joules of energy.