Question # 1

Which of the following is a vector quantity ?

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Work

Temperature

Distance

Displacement

Which of the following is not a vector quantity ?

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Weight

Mass

Force

Velocity

A scalar quantity is one that possesses only :

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Magnitude

Direction

Both a and b

None of these

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Unit Vector

Null vector

Position vector

None of these

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1

2

3

0

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[0]

[0, 0]

[0, 0, 0]

None of these

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a

b

c

a + b

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Position vector of O

Position vector of P

Unit vector

Null vector

A null vector is defined as a vector whose magnitude is:

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1

2

0

None of these

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0

1

-1

2

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2 - 7

2 + 7

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60°

90°

30°

45°

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0

-1

1

2

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0

1

-1

2

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28

29

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1

0

A unit vector is defined as a vector whose magnitude is:

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0

2

1

4

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Unit vector

Null vector

Position vector

None of these

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x - axis

z - axis

y - axis

None of these

i.(j.k) =

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Meaningless

-1

1

2

The law of parallelogram of addition was used by Aristotle to describe the combined action of :

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One force

Two forces

Three forces

Four forces

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Volume of the tetrahedron

Volume of the parallelepiped

Volume of the triangle

None of these

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