Question # 1

According to first law of thermodynamics the quantity which is conserved.

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Force

Momentum

Energy

Power

The unit of work in base unit is

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Kg m-1 sec-2

Kgm sec-2

Kgm2 sec-1

Kgm-1 sec-1

the acceleration of a body having SHM, depends upon its.

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Time period

Amplitude

Frequency

Displacement from mean position

The value of solar constant.

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1.4 kW m-2

1.0 kW m-2

1.6 kW m-2

2 kw m-2

The sum of two or more vectors will be a single vector called

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Component vector

Position vector

-ve vector

Resultant vector

A quantity which indicates the state and direction of a vibrating body is known as

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Time period

Amplitude

Phase

Frequency

when a ball is throng straight up, the acceleration at its highest point is.

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Upward

Down ward

Zero

Horizontal

The study of fluid dynamics is

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Easy

Complicated

Impossible

None of these

The velocity of a particle having SHM is 'v' at means position. If its amplitude is doubled them velocity at mean position will be

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v/2

v

2v

4 v

The flow of a fluid is of

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One type

Two types

Three types

Four type

The experimental value for the velocity of sound in air is

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233 m-sec^-1

333 m-sec^-1

433 m-sec^-1

533 m-sec^-1

The state of human blood flow can be found by using.

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Newton's formula of speed of sound

Interference of sound

Phenomena of beats

Doppler's effect of sound

The efficiency of heat engine whose sink is at 17 ^oC and source at 200 ^oC is.

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38%

63%

80%

90%

SI unit of work

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Newton

Walt

Pascal

Joule

Work has dimension lime

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Torque

Momentum

Velocity

Power

The measure of hotness or coldness of a substance is.

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Temperature

Heat

Internal energy

Energy

The law of conservation of energy gives us

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Equation of continuity

Stock's law

Bernoulli's equation

Viscosity

Work is a

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Scalar quantity

Vector quantity

Basic quantity

None of these

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11th Class Part 1 Physics Test Online MCQs With Answers

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