A fringe is a locus of:
Correct answer: C. Constant phase
- A. Constant amplitude
- B. Constant intensity
- C. Constant phase
- D. Same wavelength
Explanation
The correct option is C because In the context of interference patterns, a fringe represents a locus of points where the light waves are in phase or have the same phase. Fringes correspond to regions of constructive interference where the wave amplitudes reinforce each other. Therefore, a fringe represents a locus of constant phase.
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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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