2nd Year Mathematics Chapter 7 Online MCQ Test for 12th Class Mathematics Unit 7 (Vectors)

A unit vector is defined as a vector whose magnitude is:

• 0 A
• 2 B
• 1 C
• 4 D

• 1 A
• 2 B
• 3 C
• 0 D

• 90° A
• 30° B
• 60° C
• 0° D

The law of parallelogram of addition was used by Aristotle to describe the combined action of :

• One force A
• Two forces B
• Three forces C
• Four forces D

Zero vector is perpendicular to:

• Every vector A
• Unit vector only B
• Position vector only C
• Not any vector D

• a A
• b B
• c C
• a + b D

• 0 A
• -1 B
• 1 C
• 2 D

• 
  A
• 
  B
• 
  C
• 
  D

• 0 A
• 1 B
• -1 C
• 2 D

• 0 A
• 
  B
• 
  C
• 
  D

• 
  A
• 
  B
• 28 C
• 29 D

• Unit vector A
• Null vector B
• Free vector C
• None of these D

A null vector is defined as a vector whose magnitude is:

• 1 A
• 2 B
• 0 C
• None of these D

The cross product or vector product of two vectors is defined:

• Only in plane A
• Only in space B
• Both a and b C
• None of these D

• Volume of the tetrahedron A
• Volume of the parallelepiped B
• Volume of the triangle C
• None of these D

• Scalar A
• Free vector B
• Unit vector C
• Null vector D

• Unit Vector A
• Null vector B
• Position vector C
• None of these D

If 2 and 2 are x and y-components of a vector, then its angle with x-axis is:

• 30° A
• 45° B
• 60° C
• 90° D

• 0 A
• 2 B
• 3 C
• 1 D

If any two vectors of scalar triple product are equal, then its value is equal to:

• 0 A
• 1 B
• -1 C
• 2 D