Find the wavelength of this wave in a vacuum

Reference no: EM13304943

A certain EM wave has a wavelength of 4 X 10 ^-7 m and a speed of 2.5 X10^8 m/s in a partcular material ( not a vacuum).

A) what is thie frequency of the wave in this material?

B) what is the wavelength of this wave in a vacuum?

Reference no: EM13304943

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