Question

in the construction process of a hologram the wavefront obtained after reflection from plain mirror is

Answer 1

Answer:

Holography is the science and practice of making holograms. A hologram is a real ... The holographic medium, for example the object produced by a holographic ... Plane wavefronts Edit

Answer 2

Hologram Construction

Explanation:

• Holography, means of making a novel photographic image without the utilization of a lens. The photographic recording of the image is termed a hologram, which appears to be an unrecognizable pattern of stripes and whorls but which—when illuminated by coherent light, as by a laser beam—organizes the sunshine into a three-dimensional representation of the first object.
• An ordinary photographic image records the variations in intensity of sunshine reflected from an object, producing dark areas where less light is reflected and lightweight areas where more light is reflected.
• Holography, however, records not only the intensity of the sunshine but also its phase, or the degree to which the wave fronts making up the reflected light are in step with one another, or coherent.
• Ordinary light is incoherent—that is, the phase relationships between the multitude of waves during a beam are completely random; wave fronts of ordinary light waves don't seem to be in step.

In hologram the wave front obtained after reflection from plain mirror is spherical.