Wave Optics · Class 12 · CBSE · Science Physics
In a Young's double-slit experiment, the fringe width is found to be 0.4text{ mm}. If the whole apparatus is immersed in water of refractive index 4/…
Practice question from Wave Optics (Class 12 · CBSE · Science Physics), with the correct answer and a step-by-step solution.
easy · MCQ · Q-0C1D37
In a Young's double-slit experiment, the fringe width is found to be . If the whole apparatus is immersed in water of refractive index , the new fringe width will be:
- A.Correct answer
- B.
- C.
- D.
Solution
The fringe width is given by . When immersed in a medium of refractive index , both wavelength and hence the fringe width become . Therefore, .
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