Calculate the wavelength of photon having energy 5 e.v.
sanya55:
what is e.v?
Answers
Answered by
36
We will use the following formula :
eV = hf
Where eV is the energy of the photon
h = planks constant = 6.62 × 10⁻³⁴
f = frequency
f = C / Y
C = Speed of light = 3.0 × 10⁸m/s
Y = Wavelength
Substituting in the formula :
5 =( 6.62 × 10⁻³⁴ × 3 ×10⁸) / Y
Y = (6.62 × 10⁻³⁴ × 3 × 10⁸) / 5 = 3.972 × 10⁻²⁶m
eV = hf
Where eV is the energy of the photon
h = planks constant = 6.62 × 10⁻³⁴
f = frequency
f = C / Y
C = Speed of light = 3.0 × 10⁸m/s
Y = Wavelength
Substituting in the formula :
5 =( 6.62 × 10⁻³⁴ × 3 ×10⁸) / Y
Y = (6.62 × 10⁻³⁴ × 3 × 10⁸) / 5 = 3.972 × 10⁻²⁶m
Answered by
13
Answer:
We will use the following formula :
eV = hf
Where eV is the energy of the photon
h = planks constant = 6.62 × 10⁻³⁴
f = frequency
f = C / Y
C = Speed of light = 3.0 × 10⁸m/s
Y = Wavelength
Substituting in the formula :
5 =( 6.62 × 10⁻³⁴ × 3 ×10⁸) / Y
Y = (6.62 × 10⁻³⁴ × 3 × 10⁸) / 5 = 3.972 × 10⁻²⁶m
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