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A cube a sphere and a circular plate mad...

A cube a sphere and a circular plate made of same meterial and having same mass are heated to same high temperature The body that cools at the least rate when left in air at room temperature is .

A

Sphere

B

Cube

C

Circular plate

D

All at the same rate

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The correct Answer is:
A
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NARAYNA-TRANSMISSION OF HEAT-C .U .Q
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  2. The rate of cooling of a body is .

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  3. A cube a sphere and a circular plate made of same meterial and having ...

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  4. Newton's law of cooling is applied in laboratory for the determination...

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  5. Newton's law of cooling is a special case of .

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  6. The amount of heat energy radiated per second by a surface depends upo...

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  7. Four identical copper cylinders are painted If they are all heated to ...

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  8. If T(B) and T(s) are the temperatures of the body and the surroundings...

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  9. Newton's law of cooling is a law connected with .

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  10. Newton's law of cooling holds good provided the temperature difference...

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  11. A block of steel heated to 100^(@)C is left in a room to cool Which of...

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  12. Let there be four articles having colours blue red black and white. Wh...

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  14. The bulb of a thermometer is spherical and that of another is cylindri...

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  15. Which of the following methods of flow of heat is (are) based on gravi...

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  16. Two rods A and B of same metal and of same cross-section have length i...

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  17. While measuring the thermal conductivity of liquids the upper part is ...

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  18. The templitude of radiations from a cylindrical heat source is related...

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  19. Kirchoff's law states that

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  20. If pressure on a gas is increased from P to 2P then its heat conductiv...

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