12th Mathematics - One Mark Questions - Part two

This set contains questions 9-16 provided to help students to practice them as a sample. After you have prepared well for your examinations, give these a questions a go to see how well you have prepared. Post your answers to this questions in the comments section..Refer here for questions 1-8.

9) The centre and radius of the sphere given by is :

a) (-3, 4, –5) : 49

b) (-6, 8, –10) : 7

c) (6, –8, 10) : 7

d) (3, –4, 5) : 7



10) The shortest distance of the point (2, 10, 1) from the plane is:

a)

b)

c)

d)



11) The complex number 0, are the vertices of a :

a) square

b) parallelogram

c) rectangle

d) rhombus



12) if is a cube root of unit, then the value of is:

a)

b)

c)

d)



13) If z represents a complex number then is:

a)

b)

c)

d) 0



14) The polar form of the complex number is:

a)

b)

c)

d)



15) The locus of the foot of the perpendicular from the focus on a tangent to the curve is:

a)

b)

c)

d)



16) One of the foci of the rectangular hyperbola xy = 18 is:

a) (6, 6)

b) (3, 3)

c) (4, 4)

d) (5, 5)