For central maximum, path difference is zero hence phase difference for coherent sources of light will be zero. And the relation between phase difference and path difference is, Δϕ=λ2πΔx, where Δx is path difference and Δϕ is phase difference. So due to zero path difference phase difference is also zero.
Two coherent sources of light interfere and produce fringe patterns on a screen. For central maximum, the phase difference between the two waves will…
NEET UG 2020 — Physics Optics
2020mcqmedium
Two coherent sources of light interfere and produce fringe patterns on a screen. For central maximum, the phase difference between the two waves will be
Official previous-year question
Held on 30 Apr 2020 · Verified 9 Jul 2026.
Options
- A
zero
- B
π
- C
23π
- D
2π
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