MHT CET · Physics · Wave Optics
The path difference between two identical light waves at a point \(\mathrm{Q}\) on the screen in \(3 \mu \mathrm{m}\). If wavelength of the waves is \(5000 Å\), then at point \(Q\) there is
- A \(3^{\text {rd }}\) dark band
- B \(4^{\text {th }}\) bright band
- C \(5^{\text {th }}\) dark band
- D \(6^{\text {th }}\) bright band
Answer & Solution
Correct Answer
(D) \(6^{\text {th }}\) bright band
Step-by-step Solution
Detailed explanation
\(\begin{aligned} & \Delta \mathrm{x}=\mathrm{n} \lambda \\ & 3 \times 10^{-6}=\mathrm{n} \times 5000 \times 10^{-10} \\ & \mathrm{n}=6\end{aligned}\)
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