1.

If a normal to the hyperbola x^(2) - 4y^(2) = 4 having equal positive intercepts on the axes is a tangent to the ellipse (x^(2))/(a^(2))-(y^(2))/(b^(2))=1then the distance between the foci of the hyperbola(x^(2))/(a^(2))-(y^(2))/(b^(2))=1is

Answer»

`(10)/SQRT(3)`
`(5)/sqrt(3)`
`10sqrt(3)`
`5sqrt(3)`

ANSWER :a


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