Question # 1

More radiation is reflected by the surface.

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White

Coloured

Black

Rough

According to Archimedes, upthrust is equal to

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Weight of displaced liquid

Volume of displaced liquid

Mass of displaced liquid

None of these

The product of force and displacement is called;

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Work

Efficiency

Power

Energy

Thermoflask is used maintain:

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Heat

Temperature

Density

Pressure

The energy stored in coal is

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Heat Energy

Kinetic energy

Chemical energy

Nuclear energy

Unit of thermal conductivity is .

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Wmk

W m^-1 K^-1

Wm

None of these

Thermal conductivity of iron is Wm^-1 K^-1

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85

36

89

86

The sum of kinetic energy and potential energy of molecules or atoms is called.

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Temperature

Internal energy

Kinetic energy

Potential energy

Motion of the rocket is the example of which law?

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First law

Second law

Third law

Law of momentum

A measuring cylinder is used to measure.

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Mass

Area

Volume

Level of liquid

If Fy = 4 N and Fx = 3 N , what is the magnitude of resolution of force.

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5 N

7 N

10 N

15N

Earth's gravitational force of attraction vanishes at:

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6400 km

Infinity

42300 km

1000 km

The product of force and momentum arm is called:

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Couple arm

Torque

Rigid body

Axis of rotation

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9th Class Physics English Medium KPK Boards Online Mcqs MCQs With Answers

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