Question # 1

The distribution of electrical charge i an object caused by teh influence of nearby charges is called.

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Electric potential

Electrostatic induction

Electric flux

Electric dipole moment

The air plane lift is based on

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Archimedes principle

Law of conservation of momentum

Bernoulli's principle

Law of conservation of energy

What is the power rating of a lamp connected to a 12 V source when it carries 2.5 A.

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4.8 W

14.5 W

30 W

60 W

What is zoom lens

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It is a lens having fixed focal length

It is a lens having variable focal length

It is a lens used in radii to telescope

All of the above

A geostationary satellite covers

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100 ^o of longitude

120 ^o of longitude

130 ^o longitude

140 ^o of longitude

An electric Heater and a fan are marked 1000 W, 250 V and 100 W , 220 V respectively The resistance of fan is.

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Equal to that of heater

Greater than that of heater

Less than that of heater

Zero

Magnetic lines of force due to earth's horizontal magnetic field are.

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Curved lines

Elliptical

concentric circles

Parallel and straight

The actual gas can behave like an ideal gas at

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Low density and high pressure

High density and high pressure

Low density and low pressure

High density and low pressure

How does heat transfer between objects.

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From cold to hot objects

From hot to cold objects

By electromagnetic radiations

From hotter to hottest objects.

One weber is equal to.

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N A-1

N m-1 A

N mA-1

N m-1 A-1

Which of the following configuration of BJTs gives both voltage gain and current gain.

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common Base

Common Emtter

Common collector

All of the above

A material in which resultant magnetic moment is zero.

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Diamagnetic

Paramagnetic

Ferromagnetic

Anti ferromagnetic

Which of the following is more viscous

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Air

Honey

Water

Milk

Push pull amplifiers employ

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One transistor

Two transistors

Three transistors

Four transistors

The ripple tank is used to study various features of

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Wave phenomenon

Interferences

Doppler's effect

Reverberation

The three law of motion first published in 1687 by Sir Issac Newton in his work.

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Method of Fluxions

Optics

Principal Mathematica

Arithmetic Universalism

Soap cleans the dirty clothes because.

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Its chemical constituents are changed

Itr increases the surface tension of its solution with water

It increases the surface tension of its solution with water

It is less dense than that of water

Direct current generators use.

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Coiled rings

Split rings

slip rings

solenoid rings

A car is travelling with uniform acceleration the road has check posts every 100 m When the car passes one post , it has a speed of 10 m s-1 and when passes the next one its speed is 20 ms-1 What is the cars acceleration.

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0.67 m s-2

1.5 m s2

2.5 m s-2

6.0 m s-2

The magnus effect is equivalent to

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Bernouli's theorem

Archimedes principle

Pascal's law

Blood pressure

Which is the best sound source to produce a pure note.

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Tuning fork

Flute

Drum

Harmonium

To reduce spherical aberration in optical instruments which of the following should be used.

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Plano convex lenses

Concave lenses

Spherical mirrors

Plane mirrors

Eye colour is the colour of

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Iris

Retina

Comea

Pupil

Light product by a single Nicole is

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Unpolarized

Plane polarized

Circulatory polarized

Elliptically polarized

In an induction coil, the secondary emf is.

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Zero at the break of the circuit

Zero during make of the circuit

Very high during make of the circuit.

Very high during break of the circuit

A tin film of liquid is enclosed between two glass plates it is difficult to spates the plates on account of.

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Surface tension

Atmospheric pressure

Viscosity

Friction

Which liquid can flow easily.

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Traacle

Pitch

Ether

All flow with same rate

The cathode ray oscilloscope is used for

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Displaying the waveform of given voltage

Displaying the wave form of given vibrations

Rectifying a.c to d.c.

Rectifying D.C. to A.C.

In L-C parallel circuit the capacitor draws a

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Lagging current

Leading current

Lagging voltage

Leading voltage

For polarization , the direction of oscillation has to be perpendicular to the direction of travel sound waves are longitudinal waves so they cannot be.

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Reflected

Deflected

Diffracted

polarized

The unit formed by combining the fundamental untis of length , mass and time.

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Absolute units

Practical units

Bse unit

Derived units

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