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0 votes
4.6k views
in Physics by (40.5k points)
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The data given below gives the photon energy (in eV) for a number of waves whose wavelength values (in nm) are also given.

Wavelength (in nm) 200 400 600 800 1000 1200
Photon energy (in eV) 6.216 3.108 2.072 1.554 1.243 1.036

explain how one can use this data to draw an appropriate graph to infer

(i) photon energy corresponding to a wavelength of 100 nm.

(ii) the wavelength value (in nm) corresponding to a photon energy of 1 eV.

(iii) velocity of light, assuming that the value of Planck's constant is known.

2 Answers

+1 vote
by (5.0k points)
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Best answer

One can calculate the values of 1/λ plot a graph between E (photon energy in eV) and 1/λ (in nm-1) The resulting straight-line graph can be used to 

The resulting straight-line graph can be used to : 

+1 vote
by (44.9k points)

One can calculate the values of 1/λ plot a graph between E (photon energy in eV) and 1/λ (in nm-1)

The resulting straight line graph can be used to :

The slope of the graph (after appropriate adjustment of the units) would equal hc. Since h is known, one can calculate c.

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