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⚛️ Physics  ·  Ray Optics and Optical Instruments  ·  NEET & JEE

When a ray of light passes from a denser medium into a rarer medium, it bends:

Answer: away from the normal.

  • A towards the normal
  • B along the normal
  • C away from the normal
  • D perpendicular to the surface

Correct answer: C. away from the normal

Explanation: Going from denser to rarer medium the speed increases, so the ray bends away from the normal (angle of refraction greater than angle of incidence).

Concave mirror ray diagram with an object drawn as a candle on the principal axis, the focal point F marked, and the parallel ray and focal ray reflecting to form an inverted real image

Concave mirror ray construction: a ray parallel to the axis reflects through F, and a ray through F reflects parallel, locating the inverted real image. Image: Maxmath12, CC0, via Wikimedia Commons.

Concept context

Reflection, refraction, lenses, mirrors, total internal reflection.

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