Interpretation : The energy of a photon of red light is to be calculated.
Concept Introduction : Planck demonstrated mathematically that a body's ability to absorb or emit radiation is inversely related to the frequency of the radiation (v). The formula of energy is given as:
Where
Answer to Problem 66A
The energy of a photon of red light is
The red light is of lower energy than the green light.
Explanation of Solution
Given information:
The wavelength is
It is known that the value of Planck’s constant is
Planck demonstrated mathematically that a body's ability to absorb or emit radiation is inversely related to the frequency of the radiation (v).
The formula of energy is given as:
Where
To calculate the energy of a photon, substitute the values in the above formula.
The energy of a photon of red light is
From the problem 52, the energy of a photon of green light is
The red light is of lower energy than the green light.
Chapter 5 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
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