Book edition 1st Edition

Author(s) Paul Peter Urone

Pages 1272 pages

ISBN 9781938168000

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Short Answer

Combing your hair leads to excess electrons on the comb. How fast would you have to move the comb up and down to produce red light?

The frequency to move the comb up and down to produce red light is \(5 \times {10^{14}}\;Hz\).

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Step by Step Solution

TABLE OF CONTENTS :

TABLE OF CONTENTS

Step 1: Definition of frequency

Frequency is the number of waves that pass through a specific spot in a specific length of time.

Step 2: Given information and Formula to be used

The wavelength of red light: \({\lambda _{red{\rm{ }}}} = 600\;nm = 0.6 \times {10^{ - 6}}\;m\)

The speed of light value is: \(c = 3 \times {10^8}\;m/s\)

For an electromagnetic wave, the relationship between propagation speed, wavelength, and frequency is given by,

\(c = f\lambda \)

Step 3: Calculate the frequency

Consider the given formula and simplify,

We have

\(\begin{aligned} c &= f\lambda \\3 \times {10^8} &= f \times 0.6 \times {10^{ - 6}}\\f &= 5 \times {10^{14}}\;Hz\end{aligned}\)

Therefore, frequency is \(5 \times {10^{14}}\;Hz\).

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College Physics (Urone)

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Short Answer

Combing your hair leads to excess electrons on the comb. How fast would you have to move the comb up and down to produce red light?

Step by Step Solution

Step 1: Definition of frequency

Step 2: Given information and Formula to be used

Step 3: Calculate the frequency

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College Physics (Urone)

Answers without the blur.

Short Answer

Combing your hair leads to excess electrons on the comb. How fast would you have to move the comb up and down to produce red light?

Step by Step Solution

Step 1: Definition of frequency

Step 2: Given information and Formula to be used

Step 3: Calculate the frequency

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