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$Diffraction Quiz$

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Diffraction Quiz

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Questions and Answers

Who coined the word diffraction?

Francesco Maria Grimaldi

What is diffraction?

The interference or bending of waves around the corners of an obstacle or through an aperture into the region of geometrical shadow of the obstacle/aperture.

How is the diffraction phenomenon described in classical physics?

Described by the Huygens–Fresnel principle that treats each point in a propagating wavefront as a collection of individual spherical wavelets.

When is the characteristic bending pattern of diffraction most pronounced?

<p>When a wave from a coherent source encounters a slit/aperture that is comparable in size to its wavelength.</p> Signup and view all the answers

What happens when a wave encounters a slit/aperture that is comparable in size to its wavelength?

<p>The addition, or interference, of different points on the wavefront (or, equivalently, each wavelet) that travel by paths of different lengths to the register.</p> Signup and view all the answers