In an interference pattern:
Correct answer: C. Both dark and bright fringes are of equal width
- A. Bright fringes are wider than dark fringes
- B. Dark fringes are wider than bright fringes
- C. Both dark and bright fringes are of equal width
- D. Central fringes are brighter than the outer fringes
Explanation
For ideal two-slit interference with uniform illumination, the bright and dark fringes alternate with equal angular spacing; bright and dark fringe widths are equal under those conditions.
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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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