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JEE MainPhysicsDual Nature of Matter

Consider the following physical phenomena: A. Compton scattering B. X-ray diffraction C. Blackbody radiation D. Resolving power of an electron microscope Which of the given phenomena provide direct evidence for the particle nature of electromagnetic radiation?

Options

  1. AA, B and C only
  2. BA, C and D only
  3. CA only
  4. DA and C only

Correct answer

D. A and C only

Step-by-step solution

Compton scattering involves the collision between a photon and an electron, which can only be explained by treating electromagnetic radiation as particles (photons). Blackbody radiation requires the assumption that energy is emitted or absorbed in discrete quanta, supporting the particle nature of radiation. X-ray diffraction is a phenomenon that relies on the wave nature of electromagnetic radiation. The resolving power of an electron microscope is based on the wave nature of matter (De Broglie waves of electrons)

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