According to de-Broglie equation the smallest wavelength associated with it.
Correct answer: A. Alpha particle
- A. Alpha particle
- B. Neutron
- C. Proton
- D. Electron
Explanation
The alpha particle would have the smallest de Broglie wavelength because it has the highest mass. As the de Broglie wavelength of a particle is given by the equation: λ=h/p =h/mv
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Quantum theory treats electromagnetic radiation as packets of energy called photons, with energy proportional to frequency through E equals hf. The topic covers Planck's hypothesis, photon momentum, the photoelectric effect, threshold frequency, work function and wave particle duality, distinguishing quantised energy exchange from classical continuous radiation.
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