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Why snow is better heat insulator than i...

Why snow is better heat insulator than ice?

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SL ARORA-Thermal Properties of Matter-Exercise
  1. As air is a bad conductor of heat, whu do we not feel warm without clo...

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  2. Room are provided with the ventilators near the roof. Why?

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  3. Why snow is better heat insulator than ice?

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  4. We cannot boil water inside the earth's satellite. Explain.

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  5. Water is heated from below but not from top. Why?

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  6. Statement-1: Coolant coils are fitted at the top of a refrigerator , f...

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  7. The earth constantly receives heat radiation from the sun and gets war...

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  8. Animals curl into a ball, when they feel very cold.

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  9. A poor emitter has a large reflectivity. Explain why.

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  10. when a piece of red glass heated in a furnace is taken out, it glows w...

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  11. Two stars radiate maximum energy at wavelength 3.6 xx 10^(-7)m and 4.8...

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  12. Is it necessary that all black coloured objects should be considered b...

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  13. Why are clear nights colder than cloudy nights ?

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  14. White clothes are more comfortable in summer while coloured clothes ar...

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  15. Wien's displacement law fails for

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  16. In what respect, the thermal radiations are different from light radia...

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  17. What is critical temperature?

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  18. Assertion : A gas can be liquified at any temperature by increase of ...

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  19. What happens if water vapour at a pressure of 0.003 atmosphere is cool...

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  20. Water exists in liquid phase at 30^@C at 1 atmospheric pressure. How w...

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