Electromagnetic radiation having a 12.5 mm wavelength is classified as infrared radiation. What is its frequency?

Question

Question

science physics

Answer 1

Answer #1

wavelength $\lambda$ =12.5 mm

freqeencyf=c/ $\lambda$ =2.4x10¹¹hz

Answer 2

Answer #2

we know that

frequency = velocity/wavelength

here velocity = 3*10^8 m/s and

wavelength = 12.5 mm = 0.125 m

so, frequency = 25*10^8 Hz

Answer 3

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