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The line x=2y intersects the ellipse (x^...

The line `x=2y` intersects the ellipse `(x^(2))/(4)+y^(2)=1` at the points P and Q. the equation of the circle with PQ as diameter is

A

`x^(2)+y^(2)=(1)/(2)`

B

`x^(2)+y^(2)=1`

C

`x^(2)+y^(2)=2`

D

`x^(2)+y^(2)=(5)/(2)`

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WB JEE PREVIOUS YEAR PAPER-QUESTION PAPER 2012-MULTIPLE CHOICE QUESTIONS
  1. The solution of 25(d^(2)y)/(dx^(2))-10(dy)/(dx)+y=0, y(0)=1, y(1)=2e^(...

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  2. Let P be the midpoint of a chord joining the vertex of the parabola y^...

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  3. The line x=2y intersects the ellipse (x^(2))/(4)+y^(2)=1 at the points...

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  4. The eccentric angle in the first quadrant of a point on the ellipse (x...

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  5. The transverse axis of hyperbola is along the x-axis and its length is...

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  6. A point moves in such a way that the difference of its distance from t...

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  7. The number of integer values of m, for which the x-coordinates of the ...

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  8. If a straight line passes through the point (alpha, beta) and the port...

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  9. The coefficient of x^(10) in the expansion of 1+(1+x)+...+(1+x)^(20) i...

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  10. Examine the consistency of the system of equations x+ y +z=1 2x+...

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  11. Let A and B be two events with P(A^(C))=-0.3, P(B)=0.4 and )P(A nn B^(...

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  12. Let p,q,r be the altitudes of a triangle with area S and perimeter 2t....

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  13. Let C(1) and C(2) denote the centres of the circles x^(2)+y^(2)=4 and ...

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  14. A straight line through the point of intersection of the lines x+2y+4=...

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  15. Let P and Q be the points on the parabola y^(2)=4x so that the lines ...

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  16. The incentre of an equilateral triangle is (1,1) and the equation of o...

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  17. The value of lim(x to oo) ((n!)^((1)/(n)))/(n) is

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  18. The area of the region bounded by the curves y=x^(3), y=(1)/(x),x=2 is

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  19. Let y be the solution of the differential equation x(dy)/(dx)=(y^(2))/...

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  20. The area of the region bounded by the curves y=sin^(-1), x+x(1-x) and ...

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