AP EAMCET · Maths · Parabola
If one end of focal chord of the parabola is , then the length of the focal chord is____units
- A
- B
- C
- D
Answer & Solution
Correct Answer
(C)
Step-by-step Solution
Detailed explanation
Given parabola is y2=8x By comparing with parabola y2=4ax a = 2 Parametric point on parabola is at2, 2at = 2t2, 4t = 12, 2 ⇒4t =2 t = 12 Length of focal chord will be at+1t2 = 212+22 = 2 ×254…
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