Question # 1

A boy jumps out of a moving bus . There is danger for him to fall:

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Towards the moving bus

Away from the bus

In the direction of motion

Opposite to the direction of motion

Earth's gravitational force of attraction vanishes at:

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6400 km

Infinity

42300 km

1000 km

The scientist who notice that all the freely falling objects hae same acceleration.

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Einstein

Galileo

Coulomb

Newton

Specific heat of water is how many times greater than that of dry soil?

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two times

three time

four times

five times

The unit of π is:

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N

m

s

None

Example of bad conductor is:

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Wool

Iron

Graphite

Gold

The specific heat of water is

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2100 Jkg-1 k-1

4200 Jkg-1 k-1

2500 Jkg-1 k-1

2010 Jkg-1 k-1

The brids stretch out their wings and circle in the rising currents of hot air called

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conduction

convection

radiation

thermals

Matter has basically ___________ states.

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4

3

Both a & b

None

Why a coin stacked over remain undisturbed on pulling the paper strips quickly?

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Due to charge

Due to motion

Due to inertia

Due to material

The unit of heat capacity is:

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Jkg k

JK^-1

Jkg^-1K

J^-1kg^-1K^-1

Heat capacity of 5 kg water is.

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2000 JK^-1

2100 JK^-1

21000 JK^-1

210000 JK^-1

Good conductor is :

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Air

Wood

Iron

None

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