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Write down the name of: (a) two particles used in explaining the wave nature of ...

Write down the name of:
(a) two particles used in explaining the wave nature of matter;
(b) one device whose invention is based on the wave nature of matter.
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    Correct Answer: Option n
    Explanation:
    (a) Particles used in explaining the wave nature of matter are: hydrogen atom or proton, helium atom, electrons, neutron and helium nuclei or apha particles.
    (b) Inventions based on the wave nature of water devices are:
    - Electron microscope and scanning tunneling microscope (STM).

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