Question # 1

The law of conservation of energy gives us

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equation of continuity

Bernoulli's theorem

both of them

none of them

The results of mechanical tests are usually expressed in terms of

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stress

strain

stress and strain

neither strees nor strain

The number of countries who manage the largest satellite system is:

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3

24

126

200

A 120 m long train is moving in a direction with speed 20 m/s. A train B moving with 30 m/s in the opposite direction and 130 m long crosses the first train in a time

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6 s

36 s

38 s

None of these

The ohm's is defined as

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1 ampere / 1 volts

1 coulomb / 1 volt

1 volt / 1 ampere

1 volt / 1 coulomb

When relatively simple molecules are chemically combined into massive molecules, the reaction is called:

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Fission reaction

Fusion reaction

Polymerization

Any of these

None of these

How many number of anodes used in electron gun

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one

two

three

six

The magnitude of induced emf depends upon the:

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Rate of decrease of magnetic field

Rate of change of magnetic field

Rate of increase of magnetic flux

Constancy of magnetic field

None of these

A typical four stroke petrol engine undergoes how many successive processes in each cycle

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one

two

three

four

The time rate of change of displacement is called:

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Time

Acceleration

Speed

Velocity

Which of the following options correctly states the equation of continuity for an ideal fluid?

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A₁A₂= V₁V₂

A₁/A₂= V₂/V₁

A₁/A₂= V₁/V₂

none of the above

The light signal in an optical fibre is totally confined due to the

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total internal reflection

continuous refraction

both of them

either of them

Thick tar and honey have

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Small coefficient of viscosities

Large coefficient of viscosities

Zero coefficient of viscosities

Moderate coefficient of viscosities

A compound microscope is consists of objective of

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Long focal length and short focal length of eye piece

Objective of very short focal length and eye piece of long focal length

Objective of very short focal length end eye piece of also short focal length

None of these

A stress which is along one dimension is known as:

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Tensile stress

Linear stress

Compressive stress

Both (A) and (C)

Both (A) and (B)

Electric flux depends upon

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The charge only

Medium only

Both charge & medium

Permittivity & area

Average acceleration is the difference of two vectors divided by a scalarΔt. Therefore

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The dimensions of work are

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[MLT^-2]

[ML²T^-1]

[ML²T²]

[ML²T^-2]

At terminal velocity the net force acting on it is

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Maximum

Minimum

Zero

None of these

A unit vector may be defined by the

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Surface

Direction by normal drawn vector

Along the direction of surface

a and b

Which one of the following is nearly monochromatic

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Light from candle

Light from simple lamp

Light from sodium lamp

Light from sun

Which of the following is not an application of polarization

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To reduce glare of light

To check concentration sugar in solution

Curtain less windows

All of these

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