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A solid sphere and a hollow sphere of th...

A solid sphere and a hollow sphere of the same material and of equal radii are heated to the same temperature

A

both will emit equal amount fo radiation per unit time in the beginning

B

both will absorb equal amount of radiation from the surrounding in the beginning

C

the initial rate of cooling will not be same for the two sphere

D

the two spheres will have equal temperature at any instant

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The correct Answer is:
D
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NIKITA PUBLICATION-KINETIC THEORY OF GASES & RADIATION -MCQs (Newtons Law of Cooling)
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  3. A solid sphere and a hollow sphere of the same material and of equal r...

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  4. Newton's law of cooling can be obtained from

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  5. In simple radiation correction, correction in the temperature is due t...

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  7. A body cools in 7 minutes from 60^(@)C to 40^(@)C. What will be its t...

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  8. Newton’s law of cooling, holds good only if the temperature difference...

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  9. A body takes, 4 minutes to cool from 100^(@)C to 70^(@)C, if the room ...

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  10. A body in a room cools from 85^(@)C to 80^(@)C in 5 minutes. Then the ...

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  11. A hot water kept in a beaker placed in a room cools from 60^(@)C to 50...

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  12. A vessel full of hot water is kept in a room and it cools from 80^(@)C...

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  13. A body cools from 50^(@)C to 49.9^(@)C in 5 s. the temperature of the ...

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  14. A body cools from 50^(@)C to 46^(@)C in 5 min and to 40^(@)C in the ne...

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  15. A body cools from 60^(@)C to 50^(@)C in 10 minutes . If the room tempe...

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  16. A body cools at the rate of 0.6^(@)C//s when it is 40^(@)C above the s...

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  17. A body cools from 60^(@)C to 52^(@)C in five minutes. What will be fur...

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  18. A body cools at the rate of 3^(@)C//min when its temperature is 50^(@)...

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  19. A body cools at the rate of 0.75^(@)C//s when it is 50^(@)C above the ...

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  20. A sphere and a cube of equal volumes both are made of iron and have si...

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