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SL ARORA-Thermal Properties of Matter-Exercise
- We can easily boil water in a paper cup. Why?
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- A piece of paper wrapped tightly on a wooden rod is found to get charg...
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- Woolen cloths are worn in winter but not in summer. Why?
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- Stainless steel cooking pans are perferred with extra copper bottoms. ...
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- If a drop of water falls on a very hot iron, it does not evaporates fo...
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- Explain why a brass tumbler feels much colder than a wooden tray on a ...
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- Usually a good conductor of heat is a good conductor of electricity al...
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- Why do electrons in insulators not contribute to its conductivity?
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- As air is a bad conductor of heat, whu do we not feel warm without clo...
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- Room are provided with the ventilators near the roof. Why?
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- Why snow is better heat insulator than ice?
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- We cannot boil water inside the earth's satellite. Explain.
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- Water is heated from below but not from top. Why?
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- Statement-1: Coolant coils are fitted at the top of a refrigerator , f...
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- The earth constantly receives heat radiation from the sun and gets war...
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- Animals curl into a ball, when they feel very cold.
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- A poor emitter has a large reflectivity. Explain why.
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- when a piece of red glass heated in a furnace is taken out, it glows w...
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- Two stars radiate maximum energy at wavelength 3.6 xx 10^(-7)m and 4.8...
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- Is it necessary that all black coloured objects should be considered b...
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