MCQ
In Young double slit experiment, when two light waves form third minimum, they have
- APhase difference of $3\pi $
- BPhase difference of $\frac{{5\pi }}{2}$
- CPath difference of $3\lambda $
- ✓Path difference of $\frac{{5\lambda }}{2}$
✓
Answer
Correct option: D.
Path difference of $\frac{{5\lambda }}{2}$
d
(d)For minima, path difference $\Delta = (2n - 1)\frac{\lambda }{2}$
For third minima $n = 3 \Rightarrow \Delta = (2 \times 3 - 1)\frac{\lambda }{2} = \frac{{5\lambda }}{2}$
(d)For minima, path difference $\Delta = (2n - 1)\frac{\lambda }{2}$
For third minima $n = 3 \Rightarrow \Delta = (2 \times 3 - 1)\frac{\lambda }{2} = \frac{{5\lambda }}{2}$
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