Question

Calculate the frequency and the energy of the following:

A microwave at 2.6mm

Answer #1

given

wavelength of microwave = 2.6 mm.

now, we know that

c (speed of light) =frequency (v) * wavelength (λ)

c = 3 * 10^{8} m/s

therefore, frequency = 3*10^{8} m/s * 2.6 *
10^{-3} m

frequency = 7.8 * 10^{5} sec^{-1}

^{--------------------------------------------}

for energy,

we know that.

E = hc / λ = hv

h (planck constant) = **6.626176** x
10^{-}^{34} joule-seconds.

therefore,

E = **6.626176** x 10^{-}^{34}
joule-sec * 7.8 * 10^{5} sec^{-1}

**E = 5.168 x 10 ^{-28} joule.**

**he, if you find any doubt please ask and please give a
thumbs up. thanks**

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