Question

What is diffraction ؟

Answer 1

Answer:

diffraction refers to the various phenomenon that ccurs when a wave encounters an obstacle or a slit. it is a defined as the bending of waves round the corners of an obstacle or through an aperture into the region of geometrical shadow of The obstacle/aperture.

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Answer 2

It is the process of bendng of light rays from sharp edges of an opaque obstacle aperture and its spreading in the geomerical shadow region is defined is known as diffraction of light.

Or

It is a process of deviation of light from its rectilinear propogation tendency is called as diffraction of light.

Special Points:-

1. Diffraction was discovered by Grimaldi.

2. Theoretically Explaination was given by Fresnel.

3. Diffraction is possible in all type ot waves means mechanical or electromagnetic waves.