Question # 1

Sadi carnot described an ideal heat engine in

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1820

1840

1860

1880

Formula for calculating moment of inertia of the bodies of one pair is same. Tick the answer.

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Disc, sphere

sphere, hoop

Thin rod, hoop

Hoop,disc

A charge Q is divided into two parts q and Q - q and separated by a distance R. The force of repulsion between them will be maximum when

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q = Q/4

q = Q/2

q = !

None of these

Stoke;s law is not applicable when the speed of the object moving through a fluid is:

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Zero

Small

Large

None of these

The modulus of elasticity can be written as

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stress x strain

strain/stress

1/2 x stress x strain

stress/strain

The equation of continuity is

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A₁A_{2 = V}₁V₂

A_1/_V_{1 =}A_2/V₂

_V_1/A₁₌V_2/A₂

A₁_V_{1 =}A₂V₂

The first series which was identified in the spectrum of hydrogen is called:

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Lyman series

Balmer series

Paschen series

Brackett series

Pfund series

Avo-meter is used of measure the

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current, voltage

voltage, resistance

resistance, current

current, voltage and resistance

When a bicycle is in motion, the frictional forces exerted by the ground are

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In the forward direction on both the wheels

In the backward direction on both the wheels

In the forward direction on the front wheel and the backward direction on the rear wheel

In the backward direction on the front wheel and the forward direction on the rear wheel

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 hollow insulated conduction sphere is given a positive charge of 10μC. What will be the electric field at the centre of the sphere if its radius is 2 meters?

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Zero

5μC m^-2

20μC m^-2

8μC m^-2

At the maximum height the V_fis

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Constant

Zero

Maximum

None of these

The low blood pressure is known as

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Diastolic

Systolic

Low blood pressure

None of these

Co-planar forces are those forces which are

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right angle to each other

parallel to each other

antiparallel to each other

acting in a plane

Inspite vibrations the force which hold the atoms in their ordered form is

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Vander vall force

Cohesive force

Adhesive force

None of these

Solids which have no regular atomic structure are called

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Crystalline solid

elastic solid

Glassy solid

All of these

In a closed organ pipe, the fundamental frequency is f. What will be the ratio of thefrequencies of the next three overtones?

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2 : 3 : 4

3 : 7 : 11

3 : 4 : 5

3 : 5 : 7

In launch mass of the rocket fuel is

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70%

80%

More than 80%

None of these

If force and displacement of particle in the direction of force are doubled.Work would be

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Double

4 times

Half

1/4 times

Fast moving atomic particles, accelerated in an accelerator are applicable to the new branch of Physics is

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Newtonian mechanics

Relativistic mechanics

Classical mechanics

None of these

Light year is the unit of

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Speed

Mass

Distnace

Time

The relation for the diffraction pattern, when it is minimum

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d/2 sin θ = λ

sin θ = λ/2

d sin θ = λ

None of these

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