The phenomenon of diffraction occurs in .......

Write the thoughts expressed by Richard Feynman regarding the difference between interference and diffraction.

Light of wavelength $6000 \, \mathring{A}$ is incident on a slit of width $0.30 \, mm$. The screen is placed $2 \, m$ from the slit. Find the position of the first minima.

In a diffraction pattern produced by a thin wire,what happens to the fringe width when the diameter of the wire is increased?

$A$ parallel beam of monochromatic light of wavelength $5 \times 10^{-7} \ m$ is incident normally on a single narrow slit of width $10^{-3} \ mm$. At what angle of diffraction is the first minima observed?

When a compact disc $(CD)$ is illuminated by a small source of white light,coloured bands are observed. This is due to