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JEE Mains · Maths · STD 11 - 10.2 parabola,ellipse,hyperbola

જો એક ઉપવલયના લઘુ અક્ષની લંબાઈ નાભિઓ વચ્ચેના અંતરના એક ચતુર્થાંશ બરાબર હોય, તો ઉપવલયની ઉત્કેન્દ્રતા:

  1. A \(\frac{4}{\sqrt{17}}\)
  2. B \(\frac{\sqrt{3}}{16}\)
  3. C \(\frac{3}{\sqrt{19}}\)
  4. D \(\frac{\sqrt{5}}{7}\)
Verified Solution

Answer & Solution

Correct Answer

(A) \(\frac{4}{\sqrt{17}}\)

Step-by-step Solution

Detailed explanation

\begin{aligned} & 2 \mathrm{~b}=\frac{1}{4}(2 \mathrm{ae}) \\ & \frac{\mathrm{b}}{\mathrm{a}}=\frac{\mathrm{e}}{4} \\ & \mathrm{e}=\sqrt{1-\frac{\mathrm{b}^2}{\mathrm{a}^2}} \\ & \mathrm{e}=\sqrt{1-\frac{\mathrm{e}^2}{16}} \\ & \mathrm{e}^2\left(1+\frac{1}{16}\right)=1 \\ &…

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