Question

(i) Calculate the energy, in electron volts, of a photon whose frequency is the following. frequency (Hz) energy (EV) 3.40 x 104 7.80 x 1013 1.20 x 1016 (ii) Determine the corresponding wavelengths for the photons listed in part (i). frequency (Hz) wavelength (m) 3.40 x 104 7.80 x 1013 1.20 x 1016 (iii) State the classification of each on the electromagnetic spectrum. frequency (Hz) classification 3.40 x 104 ---Select--- 7.80 1013 ---Select--- 1.20 x 1016 ---Select-- 1

Answer 1

The solution for this question is given below

i) Enexpym Toules Energy, imev hv 17 e Se,f fregueney a) 3.40x 101 6.63X 10-3x 3.40x104 1.6X10-19 E1.41 x /0 ev b) 7.80x1013 E 6.63 x 10-34 7.80X1013 1.6X10-19 E0.52eV c) .20 X1014 E 6.63 X10-34 X1.20x1016 1.6X10-19 E49.7e V di Wavelength a) 3.40 X104 =3 X1o 3.40X104 -9.87 X 10

7.80x101 3 13l os 3X108 7.&0x1013 -3.85 X1o- m c) 1.20x1016 = 3 x 10& /.20X1016 2.5X 10 Electomagnetic spectrum fagiency classification 3. 40 XI01 Radio wavel 7.20X1013 Intrared 1.20 x 1016 Cltraviolet

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