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Calculate the frequency and energy per quantum of a radiation with a wavelength of 200 nm.

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Calculate the frequency and energy per quantum of a radiation with a wavelength of 200 nm. (c = 3 × 108 ms-1 and h = 6.625 × 10-34 Js)

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= 1.5 × 1015 Hz = 1.55 × 1015Hz. 

E = hv = 6.625 × 10-34 x 1.5 × 1015 

= 9.9375 × 10-19 J

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