Question # 1

If force is 200 N and length of spanner is 0.15 then torque will be:

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30 Nm

15Nm

20 Nm

10 Nm

A body is in equilibrium when its:

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Acceleration in uniform

speed in uniform

Speed and Acceleration are uniform

Acceleration is Zero.

A body is in neutral equilibrium when its centre of gravity:

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Is at its highest position

Is at the lowest position

Keep its height if displaced

Is situated at its bottom

Perpendicular / hypotenuse is equal to:

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Cosθ

Tanθ

Cosecθ

Sinθ

The number of perpendicular components of a force are

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1

2

3

4

.............. is example of vector.

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Length

Force

Mass

Time

ΣF=0 is __________ condition of equilibrium:

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1st

2nd

Unstable

Stable

If Fx and Fy are rectangular components of vector F, then its direction is determined by the relation

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θ = sin-1 Fv/Fx

θ = tan-1 Fx/Fy

θ = tan Fx/Fy

θ = tan Fy/Fx

The resultant vector of given vectors A and B is

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A couple consists of how many forces:

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1

2

3

4

In a right angle triangle base is 4 cm and perpendicular is 3 cm length of diagonal will be:

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2 cm

5 cm

4 cm

6 cm

The condition of equilibrium are:

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2

3

4

5

................. can be add algebraically.

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Scalar quantities

Vector

All

None

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Physics 9th Class English Medium Unit 4 Online Test MCQs With Answers

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