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

Related Mcqs:

1. 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...

2. The vector A= 2i^+2j^ makes_______ angle with x-axis.?

   A. 30° B. 45° C. 60° D. 90° Submitted by: Zahid Jagirani...

3. If a vector Ā is making an angle “∅” with positive y-axis then which of the following is correct.?

   A. Ax= ACos∅ B. Ay= ASin∅ C. Ay= ACos∅ D. None Submitted by: Zahid Jagirani...

4. 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...

5. 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...

6. Angle between the rectangular components of a vector is________?

   A. Zero B. 30° C. 45° D. 90° Submitted by: Zahid Jagirani...

7. 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...

8. The direction of a vector in space is specified by_______________?

   A. One angle B. Two angle C. Three angle D. No angle...

9. 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...

10. Which one is a unit vector ?

    A. ??3 i^ + ??3 j^ + ??3 k^ B. 1/??3 i^ + 1/??3 j^ +1/ ??3 k^ C. ??3 / 3 i^ + ??3 / 3 j^ + ??3 / 3 k^ D. Both B and C are correct...