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A metallic solid sphere and a hollow sph...

A metallic solid sphere and a hollow sphere of same material and external radius are heated to the same temperature and allowed to cool in the same environment .Which of the two has aa greater cooling rate?

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BINA LIBRARY-THERMAL PROPERTIES OF MATTER -EXERCISE
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  2. Two thermometers are constructed in the same way except that one has a...

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  3. A metallic solid sphere and a hollow sphere of same material and exter...

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  4. A sphere ,a cubeand a thin circular plate,all made of the same meterie...

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  5. Heat is generated continuosly in an electric heater ,but its temperatu...

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  6. A zinc rod is measured by means of a brass scale (Which is correct at...

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  7. A hot ball of iron weighing 200 g is dropped into 500 g water at 10°C ...

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  8. The densities of two substance are 2:3 and their specific heats are 0....

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  9. Calculate the minimum amount of water at 15°C needed to cool 200g of ...

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  10. A piece of metal weighing 50 g is heated to a temperature of 1000°C a...

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  11. How much steam at 100°C will just melt 3200g of ice at -10°C ?

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  12. Find the result of mixing 100 g of ice at -12°C with 50g of water at 9...

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  13. Calculate the amount nof heat required to change 5.0 kg of a ice to -2...

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  14. Find the time in which a layer of ice 3 cm thick on the surface of a p...

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  15. The opposite face of a cubic block of iron of cross-section 8 sq.cm ar...

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  16. Calculate the rate of loss heat through a glass window of area 1000sq....

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  17. A body which has surface area of 5.0 cm^2 and a temperature of 727 ra...

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  18. The temperature of abody is increased from 27°C to 127°C. By what fra...

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  19. A body cools from 80°C to 50°C in 5 minutes.If the temperature of th...

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  20. Two vessels of different materials are similar in size in every respec...

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