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If a piece of metal is heated to tempera...

If a piece of metal is heated to temperature `theta` and then allowed to cool in a room which is at temperature `theta_(0)` the graph between the temperature T of the metal and time t will be closest to :

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
C
According to Newton cooling law option (3) is correct Answer.
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RESONANCE ENGLISH-HEAT TRANSFER-Exercise
  1. One end of a thermally insulated rod is kept at a temperature T(1) and...

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  2. A long metallic bar is carrying heat from one its ends to the other en...

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  3. If a piece of metal is heated to temperature theta and then allowed to...

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  4. Three rods of Copper, Brass and Steel are welded together to from a Y ...

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  5. The two ends of a rod of length L and a uniform cross -secontional are...

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  6. A cylindrical rod having temperature T1 and T2 at its end. The rate of...

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  7. A wall has two layers A and B, each made od=f different material. Both...

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  8. All the rods have same conductance K and same area of cross section A....

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  9. Consider two rods of same length and different specific heats (S1, S2)...

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  10. Two plates each of area A, thickness L1 and L2 thermal conductivities ...

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  11. Consider a composite slab consisting of two different materials having...

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  12. A square is made of four rods of same material one of the diagonal of ...

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  13. If the temperature difference on the two sides of a wall increases fro...

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  14. The colour of a star indicates its

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  15. The means of energy transfer in vacuum is:

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  16. Which of the following is nearest to blackbody-

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  17. Which of the following is true statement?

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  18. For a black body at temperature 727^(@)C. If the temperature of the bl...

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  19. According to Wien's law

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  20. If lambda(m) denotes the wavelength at which the radiative emission fr...

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