Question

A certain shade of blue has a frequency of 7.26 × 1014 Hz. What is the energy of exactly one photon of this light?

Answer 1

Answer:

Energy of one photon = $4.81\times 10^{-19}J$

Explanation:

Frequency = $7.26\times 10^{14}\ Hz$

Energy of a photon is given by:

E = hν

Where,

h = Plank's constant

ν = Frequency

h = $6.626\times 10^{-34}J\ s$

ν = $7.26\times 10^{14}\ Hz\ or\ 7.26\times 10^{14}\ s^{-1}$

E = hν

   $=(6.626\times 10^{-34}Js)\times (7.26\times 10^{14}\ s^{-1})\\=4.81\times 10^{-19}J$

Energy of one photon = $4.81\times 10^{-19}J$

Answer 2

7.20 it the energy because


10\7.26 is 7.20
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