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SL ARORA-Thermal Properties of Matter-Exercise
- Why a small gap is left between the iron rails of railway tracks ?
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- Pendulum clocks generally go fast in winter and slow in summer.Why ?
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- Why is inver used in making a clock pendulum?
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- A brass disc fits snugly in a hole in a steel plate. Should you heat o...
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- A tightnened glass stopper can be taken out easily by pouring hot wate...
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- A long cylindrical metal vessel, having a linear coefficient (alpha), ...
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- When hot water is poured on a glass plate, it breaks because of
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- Two indentical recrangular strips. One of copper and the other of stee...
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- Iron rims are heated red hot before planting on car wheels. Why?
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- In riveting boiler plates, red hot rivets are used. Why ?
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- A metal ball is heated through a certain temperature. Out of mass, rad...
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- A beaker filled with water at 4 .^(@)C over flows if the temperature o...
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- A block of wood is floating on water at 0^@C with a certain volume V a...
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- Is J a physical quantity ?
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- Why is J called a conversion factor?
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- When we rub our hands, they are warmed but only to a certain maximum t...
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- There is a slight temperature difference between the water fall at the...
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- Why do the brake drums of a car get heated, when the car moves down a ...
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- Can a given amount of mechanical energy be completely converted into h...
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- A match stick can be lighted by rubbing it against a rough surface. Wh...
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