Fundamentals of Materials Science and Engineering, Binder Ready Version: An Integrated Approach
Fundamentals of Materials Science and Engineering, Binder Ready Version: An Integrated Approach
5th Edition
ISBN: 9781119175483
Author: William D. Callister Jr., David G. Rethwisch
Publisher: WILEY
Question
Chapter 19.14, Problem 1QP
To determine

To demonstrate:

The frequency and energy of a photon of visible light.

Expert Solution & Answer
Check Mark

Answer to Problem 1QP

The frequency and energy of a photon of visible light is 6×1014s1_ and 3.98×1019J_ respectively.

Explanation of Solution

Given:

The wavelength of a visible light, λ=5×107m .

Explanation:

Write the equation of frequency of a photon of green light.

ν=cλ (I)

Here, the velocity of light is c.

Determine the energy of a photon of visible light.

E=hcλ (II)

Here, the universal constant is h.

Conclusion:

Substitute 3×108m/s for c and 5×107m for λ in Equation (I).

ν=3×108m/s5×107m=6×1014s1

Substitute 3×108m/s for c, 5×107m for λ , and 6.63×1034Js for h in Equation (II).

E=(6.63×1034Js)(3×108m/s)5×107m=3.98×1019J

Thus, the frequency and energy of a photon of visible light is 6×1014s1_ and 3.98×1019J_ respectively.

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