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Component 3 Light, Nuclei and Options

Quick questions on Wave-particle duality: the de Broglie wavelength and electron diffraction - Eduqas A-Level Physics

3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is q1?
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State the de Broglie relation. [1 mark]
What is q2?
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An electron has momentum 3.0×10−24 kg m s−13.0 \times 10^{-24}\ \text{kg m s}^{-1}. Find its de Broglie wavelength (h=6.63×10−34 J sh = 6.63 \times 10^{-34}\ \text{J s}). [2 marks]
What is q3?
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State what electron diffraction demonstrates about electrons. [1 mark]

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