In Young's double slit experiment, if we use white light then:
Correct answer: D. No interference fringes will be seen
- A. Coloured fringes will be observed
- B. Bright fringes will be observed
- C. Alternate dark and bright fringe will be observed
- D. No interference fringes will be seen
Explanation
Young's double slit experiment requires monochromatic light to observe interference fringes. White light, being composed of different wavelengths and colors, does not fulfill this requirement, hence no interference fringes will be seen. Options A, B, and C are incorrect because they do not take into account the need for monochromatic light in the experiment.
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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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