Question # 1

Size of the molecules is much smaller as compared to the

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Mass of the molecules

Distance between the molecules

Density of the molecules

Volume of the molecules

Which one is renewable source of energy.

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Coal

Uranium

Biomass

Natural gas

The least distance of distinct vision for the normal eye is.

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15 cm

25 cm

125 cm

25 m

Air blows from

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High pressure to low pressure

Low pressure to high pressure

Low temperature to high temperature

High temperature to low temperature

When the amplitude of a wave become double, its energy becomes

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One half

Two times

Three times

Four times

The SI unit of power is

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Joule

Newton

Watt

Kilowatt

Viscosity is represented by Greek letter

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In stationary waves, the particle velocity at nodes is

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Minimum

Maximum

Zero

Constant

Time rate of change of angular displacement is called

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Linear velocity

Angular velocity

Rotational velocity

Vibrational velocity

The resultant of two vectors having magnitude 10 N and 8 N Can not be

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2 N

9 N

18 N

20 N

If a body revolves under centripetal force its angular acceleration is

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Non zero

Variable

Increasing

Zero

The dimension of power is

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MLT-1

ML2T-2

ML2T2

ML2T-3

The moment of inertia is analogue to

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Mass

Weight

Torque

Force

The direction of angular velocity of along the

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Tangent at that point

Axis of rotation

Radius towards the centre

Radius away from the centre

If the pressure of a gas is doubled, then speed of sound is.

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Doubled

Become half

Not affected

Increases by four times

The work done in gravitational field

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Depend upon the path

Does not depend upon the path

(+)ve

Zero

Rate of change of velocity is called

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Speed

Acceleration

Displacement

Torque

The error in speed of sound calculated by Newton at STP is about.

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0 %

14 %

15 %

16 %

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11th Class Part 1 Physics Test Online MCQs With Answers

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