When X-rays are scattered by loosely bound electrons from a graphite target, it is known as
Correct answer: C. Compton's effect.
- A. Pair production.
- B. Pair annihilation.
- C. Compton's effect.
- D. Uncertainty principle.
Explanation
The correct answer is Compton's effect. This phenomenon occurs when X-rays are scattered by electrons, resulting in a change in the wavelength of the X-rays. It demonstrates the particle nature of light and supports the quantum theory of radiation.Pair production and pair annihilation involve interactions at higher energy levels, typically with gamma rays, and are not directly related to X-ray scattering. The uncertainty principle, while a fundamental concept in quantum mechanics, does not describe the scattering of X-rays by electrons.
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About Photons and the Particle Model of Light
The particle model treats light as photons with energy E equals hf and momentum related to wavelength. Questions involve the photoelectric effect, work function, threshold frequency, stopping potential and photon energy, while distinguishing particle behaviour from the wave description of interference and diffraction.
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