JEE Main · 2026 · 22 Jan 2026 · Shift 2 · Parabola

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Let the locus of the mid-point of the chord through the origin O of the parabola be the curve S . Let P be any point on S . Then the locus of the point, which internally divides OP in the ratio , is :
  1. (A)
  2. (B)✓ Correct
  3. (C)
  4. (D)

Answer: (B)

Solution

A point of is ; the mid-point of the chord joining it to the origin is , whose locus satisfies . Let lie on , so , and let divide internally in the ratio ; then , i.e. . Substituting into ,

The required locus is .

JEE Main · 2026 · 22 Jan 2026 · Shift 2 · Single correct option

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