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Question 390008
JEE Mathematics · Hard

Parabola: Reflection property MCQ

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Reflection propertyHardQuestion 390008

Question

All light rays parallel to the axis of y² = 4ax, after reflection:
  1. A
    Pass through the focus
    Correct
  2. B
    Pass through origin
  3. C
    Become parallel to y-axis
  4. D
    Diverge randomly

Correct answer

Pass through the focus

Explanation

The reflective property of parabola: all rays parallel to the axis reflect off the parabola and pass through the focus. This is why parabolic reflectors (satellite dishes, car headlights) use this shape.

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