The plane `x+y=0` (A) is parallel to y-axis (B) is perpendicular to z-axis (C) passes through y-axis (D) none of these

The planes x=0 and y=0 (A) are parallel (B) are perpendicular to each other (C) interesect in z-axis (D) none of these

The line x=x_1,y=y_1 is (A) parallel to x-axis (B) parallel to y-axis (C) parallel to z-axis (D) parallel to XOY plane

The line x=1,y=2 is (A) parallel to x-axis (B) parallel to y-axis (C) parallel to z-axis (D) ies in a plane parallelto xy-plane.

The line (x-x_1)/0=(y-y_1)/1=(z-z_1)/2 is (A) parallel to x-axis (B) perpendicular to x-axis (C) perpendiculat to YOZ plane (D) parallel to y-axis

Find the equation of line passing through (-1,3) and (i) parallel to x-axis (ii) parallel to y- axis (iii) neither parallel to y- axis nor to x -axis.

The tangent at any point P onthe parabola y^(2)=4ax intersects the y-axis at Q. Then tangent to the circumcircle of triangle PQS(S is the focus) at Q is a line parallel to x-axis y-axis a line parallel to y-axis (d) none of these

The axis X and Z in the plane of a disc are mutually perpendicular and Y-axis is perpendicular to the plane of the disc. If the moment of inertia of the body about X and Y axes is respectively 30 kg m^(2) and 40 kg m^(2) then M.I. about Z-axis in kg m^(2) will be:

In a triangle ABC, AB is parallel to y-axis, BC is parallel to x-axis, centroid is at (2, 1), If median through C is x-y=1, then the slope of median through A is

In three dimensional geometry ax+by+c=0 represents (A) a plane perpendicular to z-axis (B) a plane perpendicular to xy plane (C) a straighat line on xy plane (D) a plane parallel to z-axis