Question # 1

In Which of the following state molecules do not leave their position?

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Solid

Liquid

Gas

Plasma

The velocity of geostationary satellites with respect to the Earth is:

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Maximum

Zero

Minimum

100 ms^-1

The vacuum in barometer is called:

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Deep vacuum

Mercury vacuum

Torricellian vacuum

None of above

Above of mass 50 kg is raised to a height of 3m. what is its P.E

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500 J

1000 J

1500 J

2000 J

The value of gravitational acceleration when a body is moving in downward direction is.

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10 ms^-1

10 ms^-2

10 m

-10 ms

In building central heating system works on the process of:

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Covection

Radiation

Conduction

both a and b

The mass of Earth is

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6 x 1018 kg

6 x 1020 kg

6 x 1022 kg

6 x 1024 kg

The gravitational force has the ________ relation with the distance between two masses:

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Direct

Inverse

Constant

None

Newton's first law of motion is valid only in the absence of:

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Force

Not force

Friction

Momentum

If an object is moving with constant speed then its distance time graph will be a straight line.

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Along time -axis

Along distance -axis

Inclined to time - axis

Parallel to time-axis

The quantities that are completely decribed by only magnitude are.

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vector

Scalar

Base

Derived

Independent quantities are taken on

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- x - axis

x -axis

-y-axis

y-axis

The energy stored in a dam is:

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Electric energy

Potential energy

Kinetic energy

Thermal energy

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