A straight line `l` passes through a fixed point (6, 8). If locus of the foot of perpendicular on line `l` from origin is a circle, then radius of this circle is … .

A straight line passes through a fixed point (2, 3).Locus of the foot of the perpendicular on it drawn from the origin is

A variable straight line passes through a fixed point (h,k). Find the locus of the foot of the perpendicular on it drawn from the origin.

A given line L_1 cut x and y-axes at P and Q respectively and has intercepts a and b/2 on x and y-axes respectively. Let another line L_2 perpendicular to L_1 cut x and y-axes at R and S respectively. Let T be the point of intersection of PS and QR . A straight line passes through the centre of locus of T . Then locus of the foot of perpendicular to it from origin is : (A) a straight line (B) a circle (C) a parabola (D) none of these

A straight line passes through the points (5,0) and (0,3). The length of perpendicular from the point (4,4) on the line is

The locus of the foot of the perpendicular drawn from origin to a variable line passing through fixed point (2,3) is a circle whose diameter is

The locus of the foot of the perpendicular from the origin to a straight line passing through (1,1) is