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General Science Question Bank Question No - 22

Question No 22. Holography is a technique of:

  • 1) recording a permanent sharp two dimensional black and white or multicolor photograph
  • 2) recording a permanent three dimensional multicolour photograph
  • 3) recording a permanent three dimensional black and white photograph
  • 4) recording a permanent three dimensional photograph of a given single colour or a multicolor

General Science Questions have been taken from previous years question papers of different competitive examinations such SSC CGL, SSC CHSL, CDS, NDA, Bank, State PSC, Railways, MAT, CAT, etc.

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