Which best describes what is occurring when a door is almost closed and rays of light fan out from the small opening? absorption interference refraction diffraction

Diffraction

It is defined as the bending of light  around the corners of an obstacle or aperture into the region of the shadow of the obstacle. This is refers to various phenomena which occur when a wave encounters an obstacle or silt.

While diffraction occurs whenever propagating waves encounter such changes, its effects are pronounced to waves whose wavelength is comparable to the dimensions of the diffracting object or silt.

Jet streams are relatively narrow bands of strong wind in the upper levels of the atmosphere. the winds blow from west to east in jet streams but the flow often shifts to the north and south. jet streams follow the boundaries between hot and cold air. the earth's rotation is responsible for the jet stream as well.

therefore, the efficiency is: