A bar of given length moves with its extremities on two fixed straight lines at right angles. Show that any point on the bar describes an ellipse.

If a bar of givenlength moves with its extremities on two fixed straight lines at right angles,then the locus of any point on bar marked on the bar describes a/an :

A bar of length 20 units moves with its ends on two fixed straight lines at right angles.A point P marked on the bar ata distance of 8 units from one end describes a conic whose eccentricity is

A straight rod of given length slides between two fixed bars which include an angle of 90^0 . Show that the locus of a point on the rod which divides it in a given ratio is an ellipse. If this ratio be 1/2, show that the eccentricity of the ellipse is sqrt(3)//2.

A straight rod of given length slides between two fixed bars which include an ingle of 90^(@) . Show that the locus of a point on the rod which divides it in a given ratio is an ellipse.If this ratio be 1/2, show that the eccentricity of the ellipse is sqrt(2)/3

A point moves such that the sum of the square of its distances from two fixed straight lines intersecting at angle 2alpha is a constant. Prove that the locus of points is an ellipse

A line of fixed length (a + b) moves so that its ends are always on two fixed perpendicular straight lines. Prove that a marked point on the line which divides this line into portions of length 'a' and 'b' describes an ellipse and also find the eccentricity of the ellipse when a = 8, b=12 .

A line of fixed length a+b moves so that its ends are always on two fixed perpendicular straight lines.Then the locus of the point which divides this line into portions of length a and bis a/an ellipse (b) parabola straight line (d) none of these