Calculate the energy, in electron volts, of a pho- ton whose frequency is (a) 620 THz, (b) 3.10 GHz, and (c) 46.0 MHz. (ii) Determine the correspond- ing wavelengths for the photons listed in part (i) and (iii) state the classification of each on the electromag- netic spectrum.

Colten Andrade

Colten Andrade

Answered question

2022-09-26

Calculate the energy, in electron volts, of a pho- ton whose frequency is (a) 620 THz, (b) 3.10 GHz, and (c) 46.0 MHz. (ii) Determine the correspond- ing wavelengths for the photons listed in part (i) and (iii) state the classification of each on the electromag- netic spectrum.

Answer & Explanation

soporoseun

soporoseun

Beginner2022-09-27Added 8 answers

We know
Energy of photons (E)=hv
h = 6.24 × 10 34 J s ν =  freguency a l s o , λ = c ν c = 3 × 10 8   m / s
\lambda is wavelenth
a) 620   T H z = 620 × 10 12 H z E = 6.24 × 10 34 × 10 12 × 620 = 3.9 × 10 19   J o u l e s λ = 3 × 10 8 620 × 10 12 = 4.84 × 10 7 = 484   n m
b) 3.10   G H z = 3.10 × 10 9   H z E = 1.9 × 10 24   J o u l e s λ = 3 × 10 8 3.1 × 10 9 = 9.67 × 10 2   m
c) 46.0 M H z = 46.0 × 10 6   H z E = 2.87 × 10 26   J o u l e s λ = 3 × 10 8 46 × 10 6 = 6.52   m

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