The points on the parabola y 2 = 12 x whose focal distance is 4 , are Options: A . &nbsp(2,√3),(2,−√3) B . &nbsp(15,25),(15,−25) C . &nbsp(1, 2) D . &nbspNone of these

Answer: Option D : D a = 3 ⇒ abscissa is 4 - 3 = 1 and y 2 = 12 , y = ± 2 √ 3 . Hence points are ( 1 , 2 √ 3 ) , ( 1 , − 2 √ 3 ) .

The points on the parabola y2=12x whose focal distance is 4 , are

Question

The points on the parabola

y^{2} = 12 x

whose focal distance is 4 , are

Options:

A . (2,√3),(2,−√3)

B . (15,25),(15,−25)

C . (1, 2)

D . None of these

Answer: Option D
:
D
a = 3

\Rightarrow

abscissa is 4 - 3 = 1 and

y^{2} = 12, y = \pm 2 \sqrt{3} .

Hence points are

(1, 2 \sqrt{3}), (1, - 2 \sqrt{3})

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