1
WB JEE 2009
MCQ (Single Correct Answer)
+1
-0.25

The circles x2 + y2 $$-$$ 10x + 16 = 0 and x2 + y2 = a2 intersect at two distinct points if

A
a < 2
B
2 < a < 8
C
a > 8
D
a = 2
2
WB JEE 2009
MCQ (Single Correct Answer)
+1
-0.25

For the two circles x2 + y2 = 16 and x2 + y2 $$-$$ 2y = 0 there is/are

A
one pair of common tangents
B
only one common tangent
C
three common tangents
D
no common tangent
3
WB JEE 2010
MCQ (Single Correct Answer)
+1
-0.25

The straight line x + y $$-$$ 1 = 0 meets the circle x2 + y2 $$-$$ 6x $$-$$ 8y = 0 at A and B. Then the equation of the circle of which AB is a diameter is

A
$${x^2} + {y^2} - 2y - 6 = 0$$
B
$${x^2} + {y^2} + 2y - 6 = 0$$
C
$$2({x^2} + {y^2}) + 2y - 6 = 0$$
D
$$3({x^2} + {y^2}) + 2y - 6 = 0$$
4
WB JEE 2011
MCQ (Single Correct Answer)
+1
-0.25

If the straight line y = mx lies outside of the circle x2 + y2 $$-$$ 20y + 90 = 0, then the value of m will satisfy

A
m < 3
B
| m | < 3
C
m > 3
D
| m | > 3
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Graduate Aptitude Test in Engineering
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CBSE
Class 12