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Question 20217
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Electromagnetic Waves and Wave Optics: Diffraction — Definition MCQ

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Diffraction — DefinitionEasyQuestion 20217

Question

Diffraction of light is the phenomenon of:
  1. A
    Splitting of light into spectrum
  2. B
    Bending and spreading of light at edges of obstacles or apertures
    Correct
  3. C
    Change in speed in different media
  4. D
    Reflection at curved surfaces

Correct answer

Bending and spreading of light at edges of obstacles or apertures

Explanation

Diffraction occurs when light encounters an obstacle or aperture whose size is comparable to the wavelength. The wave bends into the 'shadow' region — a purely wave phenomenon.

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