Question # 1

The induced current in a conductor depends upon:

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Resistance of the loop

Speed with which the conductor moves

Any of these

Both A and B

None of these

The wave form of alternating voltage is the graph between:

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Voltage across X-axis and time across y-axis

Current and time

Voltage along y-axis and time along x-axis

Voltage and current

Either (B) or (D)

Two samples A and B of a gas initially of the same temperature and pressure are compressed from a volume V to a volume V/2 such that A is compressed isothermally and B adiabatically. The final pressure

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A greater than than of B

A is equal to that of B

A is less than that of B

A is twice the pressure of B

If a car rest acceleration uniformly to a speed of 144 km/h in 20 s it covers a distance of

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20 m

400 m

1440 m

2880 m

Which are not the elementary particles?

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Photons

Leptons

Hadrons

Quarks

None of these

If the focal length of the convex lens is 5 cm, then to get the real and inverted image of the same size as that of object, the object should be placed at:

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5 cm

10 cm

15 cm

20 cm

The product of force and time is called

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acceleration

linear momentum

angular momentum

impulse

If the water falls from a dam into a turbine wheel 19.6 m below, then the velocity of water at the turbine, is (Take g=9.8 m/s²)

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9.8 m/s

19.6 m/s

39.2 m/s

98.0 m/s

While finding the electric intensity at a point between two oppositely charged parallel plates, the Gaussian surface is taken in the form of a hollow:

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Cylinder

Box

Sphere

Circle

Rectangle

Significant figures in 0.0010 are:

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Four

Three

Two

One

When the pn-junction is connected reversed biased, its resistance is of the order of

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few ohms

few kilo-ohms

few mega-ohms

few mili-ohms

Multimode step index fibre has a core of relatively larger diameter such is

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125 μm

175 μm

50 μm

100 μm

The time rate of change of displacement is called

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Speed

Velocity

Acceleration

None of these

The law of conservation of linear momentum is valid for:

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Atoms only

Molecules only

Other systems only

All of them

By which principle we can locate the position of new wavefront after a later time?

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principle of irreversibility

principle of light

Archimedes principle

Huygen's principle

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

A cane filled with water is revolved in a vertical circle of radius 4 m and water just not fall down The time period of revolution will be nearly

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1 s

4 s

8 s

10 s

If the bright fringe into be observed then we have relation

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Y = mLd/λ

Y = mλL/d

Y = λd/mL

Y = λL/md

When a stress change its shape it is called

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Tensile stress

Shear stress

Volume stress

None of these

Which of the following correctly states the base units of weight?

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N

N m s^-2

Kg m s^-1

Kg m s^-2

Turn table is the plateform over which we place

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Diffraction grating

Prism

Glass slab

a and b

When a droplet falls through a medium with terminal velocity the acceleration is

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Maximum

Minimum

Constant

Zero

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