MCQ
Two wavelengths of light $\lambda _1$ and $\lambda _2$ are sent through a young's double slit experiment simultaneously. If the third order bright fringe of $\lambda _1$ coincides with the fourth order bright fringe of $\lambda _2,$ then
- ✓$\frac{{{\lambda _1}}}{{{\lambda _2}}} = \frac{4}{3}$
- B$\frac{{{\lambda _1}}}{{{\lambda _2}}} = \frac{3}{4}$
- C$\frac{{{\lambda _1}}}{{{\lambda _2}}} = \frac{5}{4}$
- D$\frac{{{\lambda _1}}}{{{\lambda _2}}} = \frac{4}{5}$
