Consider electromagnetic waves propagating in air.

Consider electromagnetic waves propagating in air. A.)Determine the frequency of a wave with a wavelength of 5.90 km . B.)Determine the frequency of a wave with a wavelength of 6.00 μm . C.)Determine the frequency of a wave with a wavelength of 5.60 nm . D.)What is the wavelength (in meters) of gamma rays of frequency 6.50×1021 Hz ? E.)What is the wavelength (in nanometers) of gamma rays of frequency 6.50×1021 Hz ?

Answer

electromagnetic waves propagate in air with speed of light A) frequency of wave f=c/lambda=3*10^8/(5.9*10^3) =50847.46Hz B)frequency of wave f=c/lambda=3*10^8/(6*10^-6)=5*10^13Hz C)frequency of wave f=c/lambda=3*10^8/(5.6*10^-9)=5.357*10^16Hz D)wavelength lambda=c/f =3*10^8/(6.5*10^21)=4.615*10^-14m

E)wavelength lambda=c/f =3*10^8/(6.5*10^21)=4.615*10^-14m =4.615*10^-5nm

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