The interference fringe spacing depends on:
Correct answer: D. All of the above
- A. The wavelength of light used
- B. The distance of screen from the coherent sources
- C. Separation between the sources
- D. All of the above
Explanation
Fringe spacing β = λ D / d depends directly on wavelength λ and screen distance D and inversely on slit separation d; thus all listed factors matter.
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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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