MCQ
Which statement is correct for a zone plate and a lens
  •  Zone plate has multi focii whereas lens has one
  • B
     Zone plate has one focus whereas lens has multiple focii
  • C
     Both are correct
  • D
     Zone plate has one focus whereas a lens has infinite

Answer

Correct option: A.
 Zone plate has multi focii whereas lens has one
 Zone plate has multi focii whereas lens has one

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