Question

Part A: A proton is placed at point A, where the electric potential is 175 V...

Part A:

A proton is placed at point A, where the electric potential is 175 V . The proton is released from rest. Some time later, the proton has reached point B, where the electric potential is -160 V . What is the de Broglie wavelength of the proton when it reaches point B?

Part B:

We then place an electron at point B and release it from rest. What is its de Broglie wavelength when it reaches point A?

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Answer #1

AV = -168 - 175= 3350 E=qAV = 1.6x10 19 x 335 J 6 625x16 34 1. Ñ . pemke mKE / 2x 1.67 x 1027 x 1.6x1019,335 22167 -LI o.1565

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