Which one is a unit vector ?

Related Mcqs:

1. The unit vector in the direction of vector A = 2 i^ -2j^ + k^ is_______________?

   A. 2i^ – 2j^ + k^ B. (2i^ – 2j^ +k^)/9 C. (2i^ – 2j^ +k^)/3 D. (2i^ – 2j^ +k^)/5...

2. Two vectors A and B are making angle θ with each other. The scalar projection of vector B on vector A is written as____________?

   A. A.B/A B. A.B/B C. A.cosθ D. Both a and b are correct...

3. Null vector is a vector which has________________?

   A. Zero magnitude B. No specified direction C. Both A and B are correct D. Both A and B are not correct...

4. Unit vector n^ is along______________?

   A. X-axis B. Normal on a surface C. Y-axis D. Z-axis...

5. Unit vector is used to specify the _____________?

   A. Magnitude B. Velocity C. Direction of vector D. Frequency Submitted by: Chakar Hussain Shar...

6. A vector can be multiplied by a number. The number may be_______________?

   A. Dimensionless B. Dimensional scalar C. Negative D. All A, B and C are correct...

7. Maximum number of components of a vector may be________________?

   A. 1 B. 2 C. 3 D. Infinite...

8. The cross product of two vectors is a negative vector when______________?

   A. They are parallel vectors B. They are anti parallel vectors C. They are a perpendicular vector D. They are rotated through 270°...

9. What is the angle that the given vector makes with y-axis and A=2i+3j ?

   A. 30° B. 60° C. 90° D. 120°...

10. The direction of the vector product is given by______________?

    A. Head to tail rule B. Right-hand rule C. Left-hand rule D. Triangular rule...