Fringe width can be increased by decreasing:
Correct answer: B. λ
- A. Slits separation
- B. λ
- C. Distance of screen from slits
- D. Area of slit
Explanation
The correct option is B The fringe width in interference patterns is inversely proportional to the wavelength (λ) of light. Decreasing the wavelength will increase the fringe width, and vice versa.
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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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