Mhz Parts Unit
Physics waves question. please help. What is the wavelength?
a-The speed of all electromagnetic waves in
empty space is 3.00 × 108 m/s.
What is the wavelength of radio waves emit-
ted at 90.0 MHz? Answer in units of m.
b-What is the wavelength of visible light emitted at 5.7 × 108 MHz? Answer in units of m.
c-What is the wavelength of X rays emitted at
3.6 × 1012 MHz? Answer in units of m.
I got part a to be 3.3333333333333 but I dont understand how to do the rest .
a-The speed of all electromagnetic waves in
empty space is 3.00 × 10^8 m/s.
What is the wavelength of radio waves emit-
ted at 90.0 MHz? Answer in units of m.
b-What is the wavelength of visible light emitted at 5.7 × 10^8 MHz? Answer in units of m.
c-What is the wavelength of X rays emitted at
3.6 × 10^12 MHz? Answer in units of m.
I got part a to be 3.3333333333333 but I dont understand how to do the rest .
Thanks got it will pick best answer when time comes.
MHz = 10^6 Hz = 10^6 s^-1 = 10^6 /s
3*10^8 m/s = frequency * wavelength
wavelength m= 3*10^8 m/s / frequency = 3.10^8 m/s / x Hz
For part a: frequency = x = 90.0 MHz = 90.0*10^6 Hz
For part b: frequency = x = 5.7 × 108 MHz = 5.7*108*10^6 Hz
For part c: frequency = x = 3.6 × 1012 MHz = 3.6*1012*10^6 Hz
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