A light ray traveling from denser to rarer medium suffers a phase change of
Correct answer: C. 180
- A. 0
- B. 90
- C. 180
- D. 45
Explanation
Explanation: When light travels from a denser medium to a rarer medium, it undergoes a phase change of 180 degrees upon reflection. This is known as a phase change due to reflection at an optically denser medium.
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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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