Question # 1

Name the quantity which is a vector.

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Speed

Force

Temperature

Density

Force 12 N and 5 N are add, the resultant con not be

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13 N

6 N

7 N

17 N

The force and torque are analogous to

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Velocity

Mass and weight

Moment of Inertia

Each other

Direction of a vector in space requires

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Two axis

Three axis

Four axis

Both a and b

Dot product of two non zero vectors is zero it angle between them is.

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30^o

60^o

45^o

90^o

Parallel vectors of same magnitude will be

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Equal

Opposite

Both a and b

None of these

If a vector of magnitude 10 N along y-axis then its component along x-axis is

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0 N

5 N

8.66 N

10 N

What would encourage trade between two countries

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Different tax system

Frontier checks

National currencies

reduced tariffs

Maximum number of components of a vector may be

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Infinite

One

two

three

Usually the x-axis is taken as

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Vertical axis

Horizontal axis

+ve axis

-ve axis

When a fore of 100 N is acting on an object along x-axis then its vertical component will be.

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50 N

0 N

25 N

10 N

The magnitude of A will be

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Zero

A²

1

A

Which is the example of vector quantity

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Torque

Speed

Density

Work

A force of 10N makes an angle 30o with y axis. Then magnitude of x -component is.

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5 N

8.66 N

10 N

Zero

Minimum number of unequal forces whose vector sum can be zero are.

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5

4

3

2

The direction of vector in space is specified by

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1- angle

2- angle

3- angle

4 - angle

A direction of torque is

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Along the position vector r

Perpendicular to both r and f

Along the direction of force F

Opposite to the direction of r

The resultant of two forces 3N and 4 N acting at right angle to each other is.

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5 N

6 N

1 N

7 N

The resultant of two forces 30 N and 40 N acting parallel to each other is.

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30 N

40 N

70 N

10 N

Head to tail rule is used for

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Addition of vectors

Subtraction of vectors

Multiplication of vectors

Division of vectors

The resultant of two forces 3 N and 4 N acting at right angle to each other is

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7 N

5 N

4 N

1 N

The components of a vector which are perpendicular to each other are called

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Horizontal components

Vertical components

Rectangular components

All of these

Vectors have

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Numerical value

Directional

Both a and b

None of these

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11th Class Part 1 Physics Chapter 2 Test Online MCQs With Answers

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