Question # 1

The unit of resistance is

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volt

ampere

ohm

coat

What is another name for laminar flow?

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streamline

unsteady flow

turbulent flow

both (a) and (b)

Hydrogen atom with only one proton in its nucleus, and one electron in its orbit is called

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deuteron

deterium

protium

tritium

The dot product of electric field intensity E and vector area A is called

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Electric potential

Electric flux

Electric field

Magnetic field

A proton is about 1840 times heavier than an electron. When it is accelerated by a potential difference of 1 KV, its kinetic energy will be

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1840 KeV

1/1840 KeV

1 KeV

920 KeV

A dirty carpet is to be cleaned by heating. This is in according with______law of motion.

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First

Second

Third

None of these

The current of 1 ampere is passing through a conductor. The charge passing through it in half a minute is:

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One coulomb

0.5 coulomb

30 coulomb

2 coulombs

None of these

For making cooking utensils, which of the following pairs of properties is most suited?

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Low specific heat and high conductivity

Low specific heat and low conductivity

High specific heat and high conductivity

High specific heat and low conductivity

The string of a simple pendulum should be:

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Heavy

Extensible

In-extensible

None of these

The quantity F x t is called as

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momentum

velocity

acceleration

impulse

Silicon is one of the mot commonly used:

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onductor

Dielectric

Insulator

Semiconduction

Both (B) and (C)

The whole structure obtained by the repetition of unit cell is known as

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Unit cell

Crystal lattice

Ore

All of these

The fringe spacing varies directly with

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Distance L

Light of wavelength λ

Phase coherence

All of these

A monkey sits on the pan of spring scale kept in an elevator.The reading of the spring scale will be maximum when

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Elevator is stationary

Elevator cable break and it falls freely towards earth

Elevator accelerates downwards

Elevator accelerates upwards

As cross-sectional area of the pipe decreases the speed of fluids must increase according to

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Bernoulli's equation

Venture's reaction

Equation of continuity

Torricelli's theorem

At points where the crest (or trough) of one wave coincides with the crest (or trough) of the other wave, the wave produces

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destructive interference

constructive interference

diffraction

dispersion

A body of mass 100 g is rotating in a circular path of radius r cm with constant velocity.The work done in one complete revolution is

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100 rJ

(r/100)J

(100/r)J

Zero

The moment of inertia plays the same role in angular motion as in linear motion as

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Density

Weight

Mass

None of these

A unit vector is defined as

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Whose magnitude is one

Show the given direction

Opposite direction

a and b

How many ways vector can be represented

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Bold letter

Arrow over capital letter

Graphically

All ow them

Multiplication of a vector is carried out by a

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Number

Direction

Number and direction

None of these

Electrical activity of the retina the eye, generates which is used in electro ethnography as

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Current

Voltage

Resistance

None of these

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