44. Holography is a technique of A.Recording a permanent, sharp two diimensional black and white or multicolour photograph B.Recording a permanent three dimensional multicolour photograph C.Recording a permanent three dimensional black and white photograph D.Recording a permanent three dimensional photograph of a given single colour or a multicolour
Option D Solution: Holography is a photographic technique that records the light scattered from an object, and then presents it in a way that appears three-dimensional.