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University Physics Volume 3

17th Edition
William Moebs + 1 other
ISBN: 9781938168185
BuyFindarrow_forward

University Physics Volume 3

17th Edition
William Moebs + 1 other
ISBN: 9781938168185
Textbook Problem

In the 19805, the term picowave was used to describe food irradiation in order to overcome public resistance by playing on the well-known safety of microwave radiation. Find the energy in MeV of a photon having a wavelength of a picometer.

To determine

Energy in MeV of a photon.

Explanation

Given data:

  λ=1pm=1012m

Formula used:

  E=hcλ

Where h is the Planck's constant

c is the speed of light

and λ is the wavelength.

Calculation:

The photon energy is calculated by the expression

  E=hcλ

Substitute the value of 6.63×1034Js for h, 3×108m/s for C, 1012m for λ in the above expression, we get,

  E=(6

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