How to calculate the energy of a photon of electromagnetic radiation
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Answered by
1
Answer:
You use either the formula
E
=
h
f
or
E
=
h
c
λ
.
Explanation:
h
is Planck's Constant,
f
is the frequency,
c
is the speed of light, and λ is the wavelength of the radiation.
EXAMPLE 1
Calculate the energy of a photon of radiation whose frequency is
5.00
×
10
14
Hz
.
Solution 1
E
=
h
f
=
6.626
×
10
−
34
J
⋅
s
×
5.00
×
10
14
s
−
1
=
3.31
×
10
−
19
J
The energy is
3.31
×
10
−
19
J
.
You use either the formula
E
=
h
f
or
E
=
h
c
λ
.
Explanation:
h
is Planck's Constant,
f
is the frequency,
c
is the speed of light, and λ is the wavelength of the radiation.
EXAMPLE 1
Calculate the energy of a photon of radiation whose frequency is
5.00
×
10
14
Hz
.
Solution 1
E
=
h
f
=
6.626
×
10
−
34
J
⋅
s
×
5.00
×
10
14
s
−
1
=
3.31
×
10
−
19
J
The energy is
3.31
×
10
−
19
J
.
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