If all parts of a light beam have a constant phase relationship, with – McqOptions

MCQOPTIONS

1.	If all parts of a light beam have a constant phase relationship, with the same wavelength and frequency, the light beam is?
A.	poly and incoherent
B.	polychromatic and coherent
C.	mono and incoherent
D.	monochromatic and coherent
Answer» E.

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