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UKPSC Prelims 2024GS-IQ. 72 of 237
Q. 721 markMedium
UKPSC Prelims 2024·GS-I
Two slits are made one millimetre apart and the screen is placed one metre away. What is the fringe separation when blue-green light of wavelength 500 nm is used?
(a)0.5 mm
(b)0.5 mm
(c)50 mm
(d)50 m