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What is a hologram ???state the principle of reflection of image formed in a hologram????
In traditional photography we are producing latent images, i.e a two-dimensional image is transformed to the surface of a film. But there are some limitations as the photo cannot be viewed in the third dimension.
Formation of a hologram image:
A hologram is an image produced by the interference of light. An interference pattern is produced by splitting a single coherent source and then it is recombined producing constructive and destructive patterns. The object that is illuminated by high intensity laser beam and the reflected beam from the object and the reference beam from the mirror are projected to a photographic plate where it results in in a complex interference pattern. When the photographic plate is developed you could see the hologram.
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