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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

Experiments are performed with ultra-cold neutrons having velocities as small as 1.00 m/s. (a) What is the wavelength of such a neutron? (b) What is its kinetic energy in eV?

To determine

(a)

What is the wavelength of such a neutron?

Explanation

Given:

Speed of neutron is v=1.00m/s

Formula used:

Using De Broglie formula,

  λneutron=hmneutronvneutron

Here, h is plank`s constant and its value is 6.62×1034kgm2/s

Calculation:

Inserting data given, we obtain

  λneutron=6

To determine

(b)

What is its kinetic energy in eV?

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