In Young's experiment, fringe spacing is:
Correct answer: C. λL/d
- A. λ/Ld
- B. d/ λL
- C. λL/d
- D. L/ λd
Explanation
The correct option is D because In Young's double-slit experiment, the fringe spacing (distance between consecutive bright or dark fringes) is determined by the wavelength of light (λ), the distance from the slits to the screen (the observation plane) (L), and the separation between the slits (d)
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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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