If the electromagnetic radiation used to send television signals have a frequency of 3.0 * 10^9 Hz, what is its wavelength?
I forget how to do a problem like this. Just taking a guess, is this somewhat a conversion equation?
c = freq x wavelength.
c = 3E8 m/s
freq is given.
Solve fopr wavelength.
Just trying to understand this, but is C always the basic number when doing problems like this?
Always the answer would be .1, right?
Also*
Yes, you're correct! To find the wavelength of electromagnetic radiation, you can use the equation that relates the speed of light (c), frequency (f), and wavelength (λ). The equation is:
c = f * λ
where c is the speed of light, which is approximately 3.0 * 10^8 meters per second (m/s).
To find the wavelength, rearrange the equation:
λ = c / f
Plugging in the values you have:
f = 3.0 * 10^9 Hz
Substituting those values into the equation:
λ = (3.0 * 10^8 m/s) / (3.0 * 10^9 Hz)
Now, let's simplify the expression:
λ = (3.0 * 10^8) / (3.0 * 10^9) * m/s / Hz
Using the rules of exponents:
λ = 10^-1 * m = 0.1 meters = 10 cm
Therefore, the wavelength of the electromagnetic radiation used to send television signals with a frequency of 3.0 * 10^9 Hz is approximately 10 centimeters.