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TS EAMCET · Maths · Parabola

Let PQ and RT be two focal chords of the parabola y2=16x. If P=4,8 and R=16,16 then QT=

  1. A 5
  2. B 45
  3. C 413
  4. D 13
Verified Solution

Answer & Solution

Correct Answer

(A) 5

Step-by-step Solution

Detailed explanation

Given, Equation of parabola is y2=16x, so on comparing with y2=4ax we get a=4, Now given P=4,8 and R=16,16, Now we know that parametric point of given parabola will be at2,2at≡4t2,8t Now parameter for 4,8 on comparing will be t=1 and similarly for point 16,16 t=2 Now we…