Math Chapter Wise question with answer

Q01 It a tangent plane to the sphere x2 +y2 +z2 =r2 cuts distances a,b,c on the coordinate axes, then: English · PGT 2013 Q02 The radius of the circle in which the sphere x2 +y2 +z2 –8x+4y+8z–45 = 0 is cut by the plane x–2y+2z = 3, is: English · UP PCS (Pre) 2002 Q03 Two spheres of radii 3 and 4 cut orthogonally. The radius of the common circle is: English · UP PCS (Pre) 1996 Q04 If the plane 2x – 2y + z = 9 touches the sphere x2 + y2 + z2 = r2, then the value of 'r' will be: English · UK SSSC LT 2020 Q05 If 2x–y+z+4=0 is a tangent plane to the sphere whose centre is (1, 0, 1), then radius of sphere is English · UP PGT-2016 (02-02-2019) Q06 The plane 2x y z 12 + + = + + = + + = + + = touches the 2 2 2 x y z 24 + + = + + = + + = + + = sphere at the point English · UP PCS (Pre) 1996