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Why do clocks not keep correct time in s...

Why do clocks not keep correct time in summer and winter ? Why is Invar used in making clock pendulum ?

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MBD PUBLICATION-THERMAL PROPERTIES OF MATTER (HEAT PHENOMENA)-QUESTION BANK
  1. A block of ice at 0^@C is dropped from a height and melts completely o...

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  2. Two thermometers are constructed in the same way expect that one has a...

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  3. Why do clocks not keep correct time in summer and winter ? Why is Inva...

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  4. Two identical rectangular strips of copper and the other of steel are ...

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  5. The difference between length of a certain brass rod and that of a ste...

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  6. A brass disc fits snugly in a hole in a steel plate. Should you have t...

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  7. Explain why a beaker filled with water at 4^@ C overflows if the tempe...

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  8. The top of lake is frozen. Air in contact is at -15^@ C What do you ex...

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  9. The top of lake is frozen. Air in contact is at -15^@ C What do you ex...

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  10. A long cylindrical vessel having a linear coefficient of expansion alp...

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  11. What should be the length of steel abd copper rods at 0^@C so that the...

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  12. A steel rod is 3.000 cm in diameter at 25^@C. A brass ring has an inte...

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  13. A clock with an iron pendulum keeps correct time at 20^@C. How much wi...

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  14. A brass disc at a 20^@C has a diameter of 30 cm and a hole cut in the ...

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  15. In what equilibrium,, temperature of two bodies are same.

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  16. Read the statement carefully and write 'Yes' for correct statements an...

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  17. What is the unit of heat in SI.

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  18. State Zeroth law of thermodynamics.

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  19. What is Triple point of water in Kelvin's scale ?

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  20. What is highest reading in a reaumur scale ?

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