When white light is used in the double-slit experiment then _.
Correct answer: D. Central bright and few colored fringes are observed
- A. Non-interference fringes observed
- B. Only the central bright fringe is observed
- C. Only red and white fringes are observed
- D. Central bright and few colored fringes are observed
Explanation
A bright central fringe is formed due to all the colors and as the dispersion becomes less few other colored fringes are also observed on both sides of the bright central fringe.
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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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