Question # 1

Direction of a vector in space requires

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Two axis

Three axis

Four axis

Both a and b

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

The subtraction of a vector is equivalent to the addition with

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Same direction

Perpendicular direction

Reversed direction

All of these

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

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

The resultant of two vectors having magnitude 12 N and 8 N can not be

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2 N

20 N

10 N

16 N

Parallel vectors of same magnitude will be

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Equal

Opposite

Both a and b

None of these

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Unit vector

+ve of a vector

Resultant vector

-ve of a vector

The magnitude of A will be

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Zero

A²

1

A

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

Vectors have

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Numerical value

Directional

Both a and b

None of these

Usually the x-axis is taken as

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Vertical axis

Horizontal axis

+ve axis

-ve axis

Vector has both of its components are negative lies in

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1st quadrant

2nd quadrant

3rd quadrant

4th quadrant

The dot product of two vectors A and B will be zero, if angle between A and B is

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Zero

30^o

90^o

180^o

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 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

Two vector can be added by simple arithmetical method when they are at an angle of.

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120^o

90^o

0^o

45^o

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

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