Chapter 15, Problem 8STP

Interpretation Introduction

Interpretation:

The energy of photon is to be calculated for the frequency of light is given.

Concept introduction:

The formula for calculating energy of a photon of light is given by Planck scientist.

According to Planck’s Law:

$\begin{array}{l}E=h\upsilon \\ where\\ Eisenergyofphoton\\ hisPlanck\text{'}scons\tan t\\ \upsilon isfrequencyoflight\end{array}$

Answer to Problem 8STP

A

Explanation of Solution

The given data is:

$\begin{array}{l}h=6.626\times {10}^{34}Js\\ \upsilon =5.45\times {10}^{16}{s}^{-1}\end{array}$

Substituting the values in the formula:

$\begin{array}{c}E=6.626\times {10}^{-34}\times 5.45\times {10}^{16}\\ =3.61\times {10}^{17}J\end{array}$

Conclusion

Mathematical calculations show that option A is correct, thus rest are incorrect