Moderate

As the wavelength of light used increases. The distance between bright fringes in the interference pattern?

Correct answer: A. Increases

  • A. Increases
  • B. Decreases
  • C. Remains same
  • D. None of these

Explanation

Increasing the wavelength of the light increases the spacing between different fringes since the spacing between different fringes is wavelength-dependent. Red light has the largest wavelength of the color spectrum with a range of 625 - 740 nm, while violet has the smallest wavelength with a range of 380 - 435 nm.The interference pattern changes. When the wavelength increases, there are fewer points of constructive and destructive interference. There's more space between the loud and quiet zones. Likewise, if you change the tone to decrease wavelength, there are more regions of interference.

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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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