## Medical entry test [Physics] Ch. 2 mcqs:

These mcqs are prepared from physics 1st year chapter 2 especially for medical entry test by our team in order to help new students.
1- Whats the resultant of 3N and 4N forces acting at right angles
a-90N
b-5N
c-7N
d-1N

2-If A cross B is along z-axis then vectors A and B will lie in
a- zx plane
b- xy plane
c- yz plane
d-none
3-If A= 2i+4j+5k and B=-2i+2j+k. then A.B is
a-o
b-1
c--1
d-2

4-Parallel vectors of same magnitude
a-equal
b-unequal
c-when added, give the sum zero
d-when multiplied give the sum zero

5-When the magnitude of two components of vectors are equal to that of their resultant, then the angle b/w components id
a-60
b-90
c-120
d-none

6-If two unit vectors are inclined at angle of 90, then magnitude of their resultant is
a-2
b- 21/2
c-under root 3
d-zero

7-If the vectors A and B represented in such a way that A+B=A-B, then the angle b/w A and B ia
a-o
b-60
c-90
d-180

8-The magnitude of dot and cross product of two vectors is 10 in each case. find the angle b/w two vectors
a-45
b-60
c-90
d-o

9-If A*B=-B*A then angle b/w A and B is
a-180
b180/3
c-180/2
d-180/4

10-Which of the following physical quantities are represented by axial vectors
a-displacement
b-force
c-velocity
d-torque

11-The two vectors have magnitude 3 and 5. if angle b/w them is 60, then dot product of two vectors is
a-7.5
b-6.5
c-8.4
d-7.9

12-The minimum number of vectors of equal magnitude required to produce a zero resultant is
a-2
b-4
c-3
d-none

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1. it will be better with answers

2. 1. b
2. b
3. the answer is 9 which not in the given options
4. a
5. c
6. b
7. c
8. a
9. the * is not a defined operation for two vectors, anyhow if the question is like: A.B=-AB, the the angle between A and B will 180 (option a)
10. d
11. a
12. a
13. c
14. Since the directions are not given the magnitude of the resultant may lie between 0 dynes to 20 dynes.
15. d-none (the angle comes out to be 54.74 degrees)

3. Friends for some more MCQs like these please visit: http://physicsmcq.atspace.cc/

4. Thanks for the key

5. My Pleasure!

6. thats v gud way to help us thankuuuuu bro

7. amybody can disscuss wth me mcqs nmbe 10 ,12,13 and 7 :(

8. 10 is torque, 12 is a, 2 vectors are needed. 13 is 3 vectors. 7 is 90 degree.

9. mcq 13 ka b optn hona chaye

10. if we take multiply b/w a and b in que 9 then ans will be?

11. i think same?

12. samia rehman 2014

13. good mcqs bt I need help n question no 9 can any 1 plzz

14. I tried my best but finally surrender . Would u mind helping me about Qs 6

15. ehmmm gud....

16. 1st ka B kese?

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