   Chapter 30, Problem 27PE

Chapter
Section
Textbook Problem

An x ray tube has an applied voltage of 100 kV. (a) What is the most energetic x-ray photon it can produce? Express your answer in electron volts and joules. (b) Find the wavelength of such an X—ray.

To determine

(a)

The most energetic x-ray photon it can produce? Express your answer in electron volts and joules.

Explanation

Given Data:

An x-ray tube has an applied voltage of100kV.

Formula Used:

The expression for energy is as follows:

E=qV

WhereE= Energy of the x-ray photons

q= Charge

V= Applied voltage

Calculation:

We haveV=100kV

q=1.602×1019C

Substituting the values, energy is calculated as

E=(1.602×1019C)(100kV×100 V1 kV)

E=1

To determine

(b)

The most energetic x-ray photon it can produce is1.60×1014J . Find the wavelength of such an x-ray.

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