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If  and the equation  represents an ellipse, then  belongs to the interval

a)

b)

c)

d)


Question ID - 102695 :-

If  and the equation  represents an ellipse, then  belongs to the interval

a)

b)

c)

d)

1 Answer
5876 Votes
3537

Answer Key : (c) -

(c)

The equation  represents an ellipse having foci at  and  and major axis 3. If  is the eccentricity of this ellipse, then

But,

 and

 and

But,  Therefore,



Next Question :

A gas will approach ideal behaviour at

a)

Low temperature and low pressure

b)

Low temperature and high pressure

c)

High temperature and low pressure

d)

High temperature and high pressure


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