Question # 1

Air blows from

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High pressure to low pressure

Low pressure to high pressure

Low temperature to high temperature

High temperature to low temperature

Which one is non renewable source of energy.

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Hydro electric

Bio mass

Tides

Oil

The distance between two consecutive crests of troughs is called

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Time period

Wave length

Frequency

Displacement

Which one of the followign scientistis made some conributions to geometrical optics

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Plato

Archimedes

Euclid

None of these

The dimensions of angular velocity are

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[LT-1]

[LT-2]

[T-1]

[L-1T-1]

The resultant of two forces 3 N and 4 N acting at right angle to each other is

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7 N

5 N

4 N

1 N

The velocity of a projectile is maximum

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At the highest point

At point of launching and just before striking the ground

At half of the height

After striking the ground

Which one of the following is into directed along the axis of rotation

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Angular acceleration

Angular momentum

Centripetal acceleration

Angular displacement

Einstein's theory gives us the physical picture of how the

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Body moves

Gravity works

Moment of inertia produced

Weightlessness creates

The commercial unit of electric energy is

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Kilo watt hour

watt

Watt hour

Kilo Watt

Total confined light is obtained by

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Total internal reflection

Refraction of light

Diffraction

Polarization

The efficiency of heat engine whose sink is at 17 ^oC and source at 200 ^oC is.

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38%

63%

80%

90%

The mean kinetic energy of gas is at.

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0 ^oC

-273 ^oC

100 K

100 ^oC

Pressure of fluid will be low where speed of fluid is.

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Low

Zero

High

Constant

A paratooper moves downward with

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Zero acceleration

Constant acceleration

Positive acceleration

Negative acceleration

Which is the example of vector quantity

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Torque

Speed

Density

Work

The kilogramis the basic unit of

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Time

Weight

Length

Mass

Diffraction is a special type of

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Reflection

Polarization

Interference

Refraction

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