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College Physics

1st Edition
Paul Peter Urone + 1 other
ISBN: 9781938168000

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BuyFindarrow_forward

College Physics

1st Edition
Paul Peter Urone + 1 other
ISBN: 9781938168000
Textbook Problem

(a) What is the maximum energy in eV of photons produced in a CRT using a 25.0-kV accelerating potential, such as a color TV? (b) What is their frequency?

To determine

(a)

The maximum energy in eV of photons produced in a CRT using an 25.0 kV accelerating potential, such as a color TV.

Explanation

Given info:

  E=25.0 kV

  q=1.6×1019 C

Formula used:

For energy in photon produced in a CRT, the relation between energy and frequency is

  Ehf

Or

  EqV

Or

  hfqV

Calculation:

Substituting the given values of frequency in relation with time, we get

  1eV=1.6×1019 J1J=1CV

Substituting the values, we get

  hf(1

To determine

(b)

The frequency of photon produced in a CRT.

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