Several monochromatic lights pass through double slits with a separation of s 50 3m. The screen to slits distance is 2.5 m. What is/are the width of its central maximum and its corresponding wavelength(s) where the bright spot can occur? [width is expressed in 3 significant figures]
Wavelength (nm) Width (cm)
A. 350 1.75
B. 400 2.00
C. 575 5.75
D. 700 3.50
Gives
Central bright fringe
Put value
m=1
nm
Fring width
Option (b) is correct option
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