What’s the frequency (in mega hertz) of a beam of red light whose wavelength is 6000 A
To find the frequency of a beam of light with a given wavelength, we can use the formula:
c = λν
where c is the speed of light, λ is the wavelength, and ν is the frequency.
The speed of light is approximately 3.0 x 10^8 meters per second.
First, let's convert the wavelength from Ångstroms (A) to meters (m):
6000 A * (1 m / 10^10 A) = 6.0 x 10^-7 m
Now, we can rearrange the formula to solve for the frequency:
ν = c / λ
ν = (3.0 x 10^8 m/s) / (6.0 x 10^-7 m)
ν = 5.0 x 10^14 Hz
Finally, converting the frequency from Hz to megahertz (MHz):
5.0 x 10^14 Hz = 5.0 x 10^11 MHz
Therefore, the frequency of a beam of red light with a wavelength of 6000 A is approximately 5.0 x 10^11 MHz.