Wave OpticsMedium
Question
In a Young′s double slit experiment, green light is incident on the two slits. The interference pattern is observed on a screen. Which of the following charges would cause the observed fringes to be more closely spaced ?
Options
A.Reducing the separation between the slits
B.Using blue light instead of green light
C.Used red light instead of green light
D.Moving the light source further away from the slits.
Solution
Fringes to be more closed when fringe width becomes reduced fringe width β = 
As decrease also decreases (λblue < λgreen)
As decrease also decreases (λblue < λgreen)Create a free account to view solution
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