DP Physics (first assessment 2025)

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Question EXE.1A.HL.TZ0.28

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Date Example questions Example questions Marks available [Maximum mark: 1] Reference code EXE.1A.HL.TZ0.28
Level HL Paper 1A Time zone TZ0
Command term Question number 28 Adapted from N/A
28.
[Maximum mark: 1]
EXE.1A.HL.TZ0.28

A proton and an alpha particle are accelerated by the same electric potential difference. The kinetic energy of the proton is E and its de Broglie wavelength is λ. What is the kinetic energy and the de Broglie wavelength of the alpha particle?

 

  Kinetic energy of alpha particle De Broglie wavelength of alpha particle
 A. E less than λ
 B. E greater than λ
 C. greater than E less than λ
 D. greater than E greater than λ

[1]

Markscheme

C

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