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TS EAMCET · Maths · Parabola

If \(P Q\) is a focal chord of the parabola \(y^2=4 x\) with focus \(S\) and \(P=(4,4)\), then \(S Q=\)

  1. A 2
  2. B \(\frac{5}{4}\)
  3. C 5
  4. D \(\frac{3}{2}\)
Verified Solution

Answer & Solution

Correct Answer

(B) \(\frac{5}{4}\)

Step-by-step Solution

Detailed explanation

\(P Q\) is focal chord of parabola \(y^2=4 x\) focus \(S(1,0)\) and \(P(4,4)\) We know that, Length of Semi-latus rectum is Harmonic mean of \(P S\) and \(S Q\)…