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In what respect does heat radiation diff...

In what respect does heat radiation different from light?

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JBD PUBLICATION-PROPERTIES OF BULK MATTER-EXAMPLE
  1. What is thermal resistance of two rods placed in series ?

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  2. What is temperature gradient?

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  3. In what respect does heat radiation different from light?

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  4. State Dulong-Petti's law.

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  5. Why does the column of mereury first fall and then rise when a mercury...

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  6. Explain why a good conductor of heat is also a good conductor of elect...

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  7. Why the pipes carrying steam should have loops?

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  8. Why does a solid expand on the basis of molecular theory?

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  9. A brass disc fits tightly in a hole in a steel sheet.Explain whether ...

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  10. A block of wood is floating on water at 0^@ C to 8^@C.How does the vol...

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  11. Explain how the high value of specific heat capacity of water helps in...

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  12. Can water in a beaker be made to boil by placing it in a bath of water...

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  13. Distinguish between convection and radiation.

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  14. Write one difference between natural convection and forced convection.

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  15. Why are small holes provided at the bottom of the chimney of the oil l...

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  16. Out of two thermos flasks of same height and capacity but one having c...

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  17. State Newton's law of cooling.

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  18. Is the bulb of a thermometer made of diathermic or adiabatic wall?

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  19. Why does a metal bar appear hotter than a wooden bar at the same tempe...

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  20. Calculate the temperature which has same numerical value on Celsius an...

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