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

A concave mirror forms real images when the object is:

Answer: Beyond centre of curvature.

  • A Between pole and focus
  • B At focus
  • C Beyond centre of curvature
  • D Between focus and centre of curvature

Correct answer: C. Beyond centre of curvature

Explanation: Real images form when object is beyond the focus. When beyond C, image is real, inverted, smaller.

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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