Question # 1

In 1932 Chadwick discovered

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proton

neutron

photon

electron

Substances that flow easily have

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large coefficient of viscosity

small coefficient of viscosity

either of them

none of them

The SI unit of magnetic induction is

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Gauses

Tesla

Weber

Weber²

The space around the earth within which it expects a force of attraction on other bodies is known as:

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Nuclear field

Conservative field

Electric field

Gravitational field

If 2.2 kilowatt power is transmitted through 1 10 ohm line at 22000 volt, the power loss in the form of heat will be

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0.1 watt

1 watt

10 watt

100 watt

The mechanics, which deals with the objects moving with velocities approaching that of light is called:

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Relativistic mechanics

Wave mechanic

Quantum mechanics

Statics

The SI unit of strain is

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N

Dynes

Pascal

Dimensionless

If every particle of the flow that passes a particular point, moves along the same path as followed by particles which passed the point earlier, then this flow is said to be

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turbulent

streamline

abrupt

none of them

Which of the following is a state variable

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entropy

pressure

volume

all of them

Electric lines of force

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Intersect each other

Are always parallel

Are always anti-parallel

Never intersect

None of these

Amorphous solids are also called as

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crystalline solids

polymeric solids

glassy solids

any one of them

An Earth satellite in a circular orbit of 384000 km. What is its velocity in that orbit take me = 6.0 × 1024 Kv R_e = 64000 km

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2.57 kms^-1

1.1 kms^-1

1.01 kms^-1

1.07 kms^-1

Young's modulus for copper is

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70 x 10 Nm^-2

91 x 10 Nm^-2

110 Nm^-2

None of these

If the earth stop spinning the apparent weight of the body on the surface of the earth

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Increases

Decreases

Remain same

None of these

The limit below which the Hooke s law holds well is called

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Yield point

Breaking stress

Tensile strength

Elastic limit

The magnitude of vector A,B and C are respectively 12,5 and 13 units and A + B = C then the angle between A and B is

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0

π

π/2

π/4

Earth is considered to be

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a non-inertial frame

an inertial frame

an accelerated frame

none of the above

A semiconductor is known to have an electron concentration of 8 x 10¹³ per cm³ and hole concentration of 5 x 10¹² per cm³ the semiconductor is

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n-type

P-type

Intrinsic

None of these

In the phenomenon of hysteresis, the magnetism and magnetizing current behaves as

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I lags

1 leads B

I & B becomes equal

None of these

The earth satellite is a

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Navy object

Revolving object

Accelerating object

Free falling object

With the increase of temperature viscosity

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Increase

Decrease

Remains same

Doubles

The substances which break just after the elastic limit is reached, are known as

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brittle substances

ductile substances

plastic substances

elastic substances

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