How does interference work if theres only 1slit?In diffraction,howcome ther r black spaces inbetween the line?

Question

How does interference work if theres only one slit? In diffraction, how come there are black spaces in between the line?

Answer 1

Light behaves like any other sort of wave when passing through a slit. The diffraction pattern is the superposition of the plane wave pattern passing straight through, with the circular wave patterns that originate at the edges of the slit. The black spaces are the places where there is destructive interference.

Answer 2

this is itself the result of destructive interfearance
Though it is only one slit but no. of light rays enter it.
these rays interfeare amongst theselves to cancel each other

Answer 3

e=mc2