Answer:
(2) diffraction of light passing through a narrow opening
Explanation:
As we know that when light passes through a small opening then the wavefront that passes through small opening will behave like a combination of large number of point sources.
Each point source will emit a wave and due to superposition of all such waves we can observe a pattern of maximum and minimum on the screen.
this is given by the equation
\(a sin\theta = N\lambda\)
so here we can say that the correct answer will be
(2) diffraction of light passing through a narrow opening
