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Holography is based on the principle of _________

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Holography is based on the principle of _________

(a) Interference

(b) Diffraction

(c) Interferometer

(d) Polarization

The question was posed to me during an online interview.

My question is from HoloGraphy in section Optics of Engineering Physics II

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Right choice is (a) Interference

For explanation: The principle of interference is used in Holography. The interference pattern between two or more beams of coherent light or laser is captured by a hologram. The hologram captures light as it interests the whole area of the film.

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