Chapter 2 physics Exercise Mcqs || Vectors || Class 11 Physics|| kpk board || Feel the nature||

Описание: Mcqs chapter number 2 | vectors 11th class physics kpk board | feel the nature |
11th class physics multiple choice questions | chapter number 2 vectors physics kpk board |

Chapters:

0:00 Intro
00:17 MCQ No.01
09:54 MCQ No.02
12:54 MCQ No.03
15:13 MCQ No.04
17:36 MCQ No.05
19:58 MCQ No.07
21:34 MCQ No.08
23:52 MCQ No.09
28:37 MCQ No.10
30:34 MCQ No.11
38:25 MCQ No.14
42:09 MCQ No.15


1) Two vectors lie with their tails at the same point. When the angle between them is increased by 20° their scalar product has the same magnitude but changes from positive to negative. The original angle between them was:

A. 0° B. 60° C. 70° D. 80°

2) The minimum number of vectors of unequal magnitude required to produce a zero resultant is
A. 02 B. 03 C. 04 D. 05

3 ) If the resultant of two vectors, each of magnitude A is also a magnitude of A. the angle between the two vectors will be:
A. 30° B. 45° C. 60° D.120°

4) The magnitude of vector A=2i ̂+j ̂+2k ̂ is
A. 09 B. 05 C. 03 D. 01

5) When Fx = 3 N and F= 5 N then Fy=
A. 06 N B. 04 N C. 02 N D. 0 N

6) If Ax = 1.5 cm, Ay = –1.0 cm, into which quadrant do the vector A point?
A. I B. II C. III D. IV

7) A · (A × B) = ?
A. 0 B. 01 C.AB D.A2B

8) Two forces of magnitude 20 N and 50 N act simultaneously on a body. Which one of the following forces cannot be a resultant of the two forces?
A. 20 N B. 30 N C. 40 N D. 70 N

8) If the dot product of two nonzero vectors A and B is zero then the magnitude of their cross product is __
A. 0 B. 1 C. AB D. –AB

9) The sum of magnitudes of two forces is 16N. If the resultant force is 8N and its direction is perpendicular to minimum force then the forces are
A. 6 N and 10 N B. 8 N and 8 N C. 4 N and 12 N D. 2 N and 14 N

10) Find the mass of the uneven rod shown in the figure. If its center of gravity is 14 cm from end A is ____
A. 100 g

B. 150 g

C. 80 g

D. 5 g

14) For which angle the equation |A.B |=|AXB| is correct.
A. 30o 20° B. 45o 20° C. 60o 20° D. 90o 20°

15) What is the net torque on wheel radius 2 m as shown?
A. 10 N anticlockwise

B. 10 Nm anticlockwise

C. 10 Nm clockwise

D. 5 Nm clockwise


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