What the........Chemistry????!!!
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What the........Chemistry????!!!

[From: ] [author: ] [Date: 11-11-12] [Hit: ]
It is called Planck`s constant.Hzis be expressed by s-1 in order to cancel units .......
The human eye can detect light at a frequency of 6.94 x 1014 Hz in the visible region of the spectrum. Calculate the energy, in joules, of an individual photon of this light.

a. 6.94E+14 J
b. 2.86E-40 J
c. 9.55E-49 J
d. 4.60E-19 J
e. 2.77E+5 J

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E(energy) = frequency *h
E = 6.94* 10^14s-1 * 6.626*10^-34 J*s=4.60 J

h is constant=6.626*10^-34J*s.It is called Planck`s constant.
Hz is be expressed by s-1 in order to cancel units .
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