The setup shown in the Fig the two slits, S1 and S2 are not equidistant from the slit S. The central fringe at O is then:
Correct answer: C. Either dark or bright depending on the position of S
- A. Always bright
- B. Always dark
- C. Either dark or bright depending on the position of S
- D. Neither dark nor bright
Explanation
The central fringe can vary in brightness based on the position of the slits.
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About Optics
Light is studied through reflection, refraction, dispersion, interference, diffraction and polarization, linking ray behavior with its wave nature. Questions may involve mirrors, lenses, optical instruments, refractive index and image formation, while geometrical optics deals with rays and wave optics explains effects such as interference and diffraction.
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