Physics Mcqs Notes for intermediate and Entry Test Preparation

The “first light “of big bang recently detected by radio telescope as

a)

Sound waves

b)

Water waves

c)

Radio waves

d)

None

2.

The range of middle size things is

a)

Molecules to atoms

b)

Electrons to molecules

c)

Molecules to earth

d)

Molecules to sun

3.

Tera is the prefix equal to

a)

1012

b)

10-12

c)

1016

d)

1019

4

Power in terms of base quantities

a)

Kgm2s-3

b)

Kgms-2

c)

Kgm2s-3

d)

none

5.

Which one is the least submultiples

a)

Pico

b)

femto

c)

atto

d)

neno

6.

What are the dimensions of the gravitational constant G

a)

M-1L3T-2

b)

ML2T-2

c)

MLT

d)

M-1L-2T-3

7.

The measurement recorded as 9.40×105 kg has significant figures

a)

one

b)

two

c)

three

d)

five

8.

1kg of mass is equal to

a)

9×1016j

b)

1.64×1019j

c)

9×1016j

d)

9×102j

9.

The travelling time of light from Pluto to earth

a)

1 min 20 sec

b)

8 min 20 sec

c)

5 h 20 sec

d)

6 h

10.

Closeness of measured value is called

a)

accuracy

b)

precision

c)

both

d)

none

11.

Behavior of a physical quantity can be checked by

a)

By writing its dimension

b)

By calculating its uncertainty

c)

By checking its precision

d)

Any of them

12.

The dimension of weight

a)

ML-1

b)

LT-2

c)

MLT-2

d)

ML2T

13.

Which of the following is most precise instrument

a)

Meter rod

b)

Screw gauge

c)

Venire caliper

d)

All of these

14.

Zero error is a type of

a)

Random error

b)

Systematic error

c)

Personal error

d)

none

15.

For measuring small quantities we use……..instrument

a)

Precise

b)

Accurate

c)

Both can be used

d)

None of these

The direction of a vector in space is represented by

a)

One angle

b)

Two angle

c)

Three angles

d)

None

2.

n^ is along

a)

x-axis

b)

Y axis

c)

Normal to surface

d)

Z -axis

3.

Maximum number of rectangular components are

a)

Two

b)

Three

c)

Infinite

d)

None of these

4.

In which quardrant ,the two rectangular components have same sign

a)

1st

b)

2nd

c)

1st and 3rd

d)

4th

5.

The dimension of torque is equal to

a)

Work

b)

Energy

c)

Moment arm

d)

a and b

6.

i.(J.k)

a)

I

b)

J

c)

1

d)

None of these

7.

Cross product of zero and null vector is

a)

Zero

b)

Null vector

c)

Both possible

d)

None of these

8.

The magnitude of dot and cross product is equal .the angle between the vectors

a)

30

b)

60

c)

45

d)

180

9.

east×south has direction along

a)

West

b)

North

c)

Down

d)

up

10.

Cosθi+sinθj is a

a)

Unit vector

b)

Position vector

c)

Null vector

d)

None of these

Addition of vectors obeys…….law

a)

Commutative

b)

Associative

c)

Distributive

d)

All

2.

A vector can be multiplied by a scalar ,the scalar may be

a)

Dimensional

b)

Dimensionless

c)

Both can be

d)

None of these

3.

The resultant of two forces of equal magnitudes is also equal to them when they lies at an angle of

a)

450

b)

900

c)

1200

d)

None of these

4.

If A=B which of the following is not correct

a)

A.B=A^.B^

b)

|A|=|B|

c)

|A^|=|B^|

d)

None of these

5.

Torque of a force will be same along different axis of rotation, the statement is

a)

False

b)

Correct

c)

Both can be

d)

None of these

6.

Magnitude of dot and cross product of two vectors is equal , the angle between them is

a)

45

b)

76

c)

30

d)

60

7.

If forces acting on a body form closed polygon then body will be in

a)

Translational equilibrium

b)

Rotational equilibrium

c)

Complete equilibrium

d)

Not in equilibrium

8.

Addition of vectors depends upon

a)

Magnitude of vectors

b)

Angle between them

c)

Both

d)

None of these

9.

Torque due to weight of a body will be zero if pivot point is

a)

Up than centre of gravity

b)

Below the centre of gravity

c)

Centre of gravity

d)

None of these

10.

Concurrent forces produce

a)

Maximum acceleration

b)

Minimum acceleration

c)

Zero acceleration

d)

None of these

11.

Multiplication of vector and scalar can produce

a)

Vector only

b)

Scalar only

c)

both

d)

None of these

12.

Reverse process of composition of vector is

a)

Resolution

b)

Addition

c)

Subtraction

d)

All true

13.

Two vectors have magnitude 10,8 their resultant cannot be

a)

15

b)

18

c)

0

d)

2

14.

Half of the magnitude of cross product represents area of

a)

Parallelogram

b)

Triangle

c)

Rectangle

d)

Pentagon

15.

Force applied on a moving charge particle by magnetic field can be calculated by

a)

Dot product

b)

Cross product

c)

With both

d)

none

16.

Two states of a body can be with respect to

a)

One observer

b)

More than one observer

c)

Can never be

d)

None of these

17.

Closest distance between two points is

a)

Straight line

b)

Elliptical

c)

Any curved path

d)

All possible

18.

Which velocity cannot give information about variation of velocity throughout displacement

a)

Average

b)

Instantaneous

c)

Both

d)

none

19.

At certain time v=0 but have acceleration. is this possible?

a)

Yes

b)

No

c)

May or may not

d)

none

20.

Slope of velocity time graph is

a)

Positive

b)

Negative

c)

d)

Both can be

21.

Velocity time graph cannot be in………quadrant

a)

2nd

b)

4th

c)

Both

d)

In both can be

22.

A non accelerated frame of reference is

a)

Inertial

b)

Non inertial

c)

Both can be

d)

none

23.

An isolated system cannot have

a)

External forces

b)

Internal forces

c)

Both

d)

Both have

24.

A moving body ……..impulse

a)

Have

b)

Does not have

c)

Both possible

d)

None of these

25.

A projectile have ……….constant velocity

a)

Horizontal

b)

Vertical

c)

Both

d)

No one

26.

When two bodies collide they transfer

a)

Momentum

b)

Energy

c)

both

d)

None

27.

Starting from 45 angle of projection, it is increasing then

a)

R and H increasing

b)

R increasing H deceasing

c)

R decreasing H increasing

d)

R and H decreasing

28.

Fuel of rocket is in the form of

a)

Liquid

b)

Solid

c)

Both can be

d)

No fuel is used

29.

Velocity and acceleration cannot be

a)

Parallel

b)

Anti parallel

c)

Perpendicular

d)

All are possible cases

30.

Sum of momentums of bullet and gun after firing should be

a)

Zero

b)

Not zero

c)

Maximum

d)

Minimum