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  • Among the following what is the energy of a photon with a frequency of <img alt="5.5 \times 10^{1 4} \; H z \ \ ?" src="https://entrancecorner.oncodecogs.com/gif.latex?5.5%20%5Ctimes%2010%5E%7

Among the following what is the energy of a photon with a frequency of 5.5 \times 10^{1 4} \; H z \ \ ?

Option: 1

2.75\times 10^{-19}J


Option: 2

3.63\times10^{-19}J


Option: 3

4.13\times10^{-19}J


Option: 4

5.50\times10^{-19}J


Answers (1)

best_answer

We know that E=h \nu 

where  h is Planck’s constant = 6.64\times10^{-34}J-sec  

and \nu is the frequency in Hz.

Substituting the given values,

E=6.6 \times 10^{-34} \mathrm{~J}-\mathrm{sec} \times 5.5 \times 10^{14} \mathrm{~Hz}=3.63 \times 10^{-19} \mathrm{~J},

Posted by

Ritika Kankaria

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