COMEDK · Physics · 26. Wave Optics
In Young's double slit experiment with sodium vapour lamp of wavelength \(589 \mathrm{~nm}\) and slit \(0.589 \mathrm{~mm}\) apart, the half angular width of the central maxima is
- A \(\sin ^{-1}(0.01)\)
- B \(\sin ^{-1}(0.0001)\)
- C \(\sin ^{-1}(0.001)\)
- D \(\sin ^{-1}(0.1)\)
Answer & Solution
Correct Answer
(C) \(\sin ^{-1}(0.001)\)
Step-by-step Solution
Detailed explanation
In Young's double slit experiment, the angular width of the central maxima is defined by the position of the first minima on either side of the central point. The condition for the first minima in a double slit interference pattern is given by \(d \sin \theta = \lambda\), where…
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