Critical angle of a medium depends upon the:
Correct answer: C. Refractive index of the medium
- A. Speed of light
- B. wavelength of light
- C. Refractive index of the medium
- D. intensity of light
Explanation
The critical angle is the angle of incidence, which corresponds to an angle of refraction of 90 degrees when light travels from a denser to a rarer medium.
This question appeared on the ETEA MDCAT 2006 paper, which you can sit online with every answer explained.
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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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