Question # 1

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Unit vector

Null vector

Position vector

None of these

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0

1

-1

2

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Unit vector

Null vector

Free vector

None of these

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

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1

2

0

None of these

Which of the following is a vector quantity ?

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Work

Temperature

Distance

Displacement

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a

b

c

a + b

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Position vector

Null vector

Unit vector

None of these

Which are the following triples can be direction angles of a single vector:

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45°,45°,60°

30°,45°,60°

45°,60°,60°

30°,30°,30°

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60°

90°

30°

45°

If 2 and 2 are x and y-components of a vector, then its angle with x-axis is:

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30°

45°

60°

90°

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0

If any two vectors of scalar triple product are equal, then its value is equal to:

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0

1

-1

2

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Scalar quantity

Reciprocal vector

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3

4

5

6

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2 - 7

2 + 7

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0

1

-1

2

Which of the following is not a vector quantity ?

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Weight

Mass

Force

Velocity

The cross product or vector product of two vectors is defined:

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Only in plane

Only in space

Both a and b

None of these

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0

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0

2

3

1

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