Question
Asked Dec 16, 2019
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what is the wavelength of electron accelerated by 1000 volts?

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Expert Answer

Step 1

The kinetic energy of the electron would be

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KE=voltsxenergy gained by electron per volt =1000V×1.602×10-1 . =1.602x10-16J

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Step 2

The velocity can be calculated  by

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2KE ν- 1η 2x1.602×1016J 9.11×10'kg =V3.5x10"m²/s² =1.87×10’m/s

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Step 3

The wavelength is...

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mv 6.62× 10-34 9.11x10-31 × 1.87×10' = 0.39×10-10

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Chemistry

Atomic structure

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