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

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

   A. 30°
   B. 60°
   C. 90°
   D. 120°

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

   A. 30°
   B. 45°
   C. 60°
   D. 90°

   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. Which one is not correct for a vector A= 2i+2j+3k ?

   A. Has direction 45° with an x-axis
   B. Has magnitude 2
   C. Has magnitude 2 and direction °=45° with a y-axis
   D. Has magnitude -2

8. Which one of the following is not vector quantity _______?

   A. Acceleration
   B. Displacement
   C. Speed
   D. Force

   Submitted by: Rashid Mehmood

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. A vector can have maximum________components in space.?

    A. Zero
    B. Two
    C. Three
    D. Infinite

    Submitted by: Zahid Jagirani