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QWhat is the first law of refraction?

ID: #8377 Optics 144 views
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#8377Q ID
ModerateDifficulty
OpticsTopic
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  • A The angle of incidence is equal to the angle of reflection. ✔ ✖
  • B The incident ray, the reflected ray, and the normal to the reflecting surface all lie in the same plane. ✔ ✖
  • C The ratio of the sine of the angle of incidence to the sine of the angle of refraction is constant. ✔ ✖
  • D The refractive index of a medium is dependent on the wavelength of light. ✔ ✖
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Answer: B) The incident ray, the refracted ray, and the normal to the refracting surface all lie in the same plane.

Explanation: The first law of refraction states that the incident ray, the refracted ray, and the normal to the refracting surface all lie in the same plane.

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