Question # 1

In case of an ideal gas, the P.E associated with its molecule is

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maximum

zero

minimum

not fixed

The consumption source if energy is:

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Energy from blomass

Hydroelectric energy

Geothermal energy

None of these

Alfa particles are

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hydrogen nuclei

helium nuclei

electrons

photons

The lasing or active medium in He-Ne laser discharge tube is:

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Nitrogen

Helium

Hydrogen

Neon

None of these

There is no way to detect:

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Absolute uniform motion

Accelerated motion

State rest

State of motion

None of these

S.I. unit of planks constant is

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J-s^-1

J.s

J.s^-2

J.s²

To see the minor details of the object by microscope, it should have:

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High magnifying power

High resolving power

Am objective of larger focal length

None of these

Which of the following is not a unit of power:

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J-sec

Watt

N m/sec

Horsepower

The number of LED'S needed to display all the digits is:

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Four

Five

Nine

Six

Seven

Earth is considered to be

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a non-inertial frame

an inertial frame

an accelerated frame

none of the above

Resistance is measured in

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volts

ampere

ohm

watt

Which one of the following waves cannot be polarized

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Radio waves

X-rays

Transverse waves in a string

Longitudinal waves in a gas

The units of the temperature coefficient of resistant are

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ΩK^-1

K^-1

ΩK

(ΩK)^-1

A bar of length L, cross-section A and Young's modulus Y, is pulled by a force F from both ends so as to produce an elongation x. Then:

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x∝1/L

x∝A

x∝1/A

x∝Y

The components of a fibre optic communication system is/are

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At transmitter

An optical fibre

Receiver

All of these

At what temperature adiabatic change equivalent ot isothermal change

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0°C

0K

Critical temperature

Above critical temperature

Waves in ocean are produced due to

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Tidal movement

Winds

Both A and B

Sunlight

We can achieve polarization by

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Absorption

Reflection

Scttering

All of above

Einstein inferred that is gravitational acceleration and inertial acceleration are equivalent, gravity must

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Reflect light

Bend light

Turn light

None of these

Huygen principle is used to determine:

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Speed of light

Location of wavefront

About polarized and unpolarized light

None of them

Displacement is a physical quantity, which is a

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Scalar

Vector

Variable quality

None of these

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r

r²

r³

None of these

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