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

If a piece of metal is heated to temperature 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 I will be closest to :

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TARGET PUBLICATION-Thermal Properties of Matter-Exercise
  1. The unit of thermal conductivity is:

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  2. Two rods A and B of different materials are welded together shown in f...

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

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  4. Newton's law of cooling leads to the expression

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  5. A liquid in a beaker has temperature theta(t) at time t and theta0 is ...

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  6. A liquid cools from 70^@C to 60^@C in 5 minutes. If the temperature of...

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  7. A pan filled with hot food cools from 94^@C to 86^@C in 2 minutes. Wh...

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  8. Certain quantity of water cools from 70^@C to 60^@C in the first 5 min...

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  9. A body cools from 62^@ C to 50^@C in 10 minutes. How long will it take...

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  10. A liquid of mass 250 is kept warm in a vessel using an electric heater...

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  11. An object kept in a large room having air temperature of 25^@C takes 1...

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  12. Equal masses of two substances of densities p1 and p2 are mixed togeth...

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  13. The color of star depends upon its

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  14. A pendulum clock loses 12 s a day if the temperature is 40^@C and gain...

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  15. A hunter fired a metallic bullet of mass 'm' kg from a gun towards an ...

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  16. A piece of ice falls from a height h so that it melts completely. Only...

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  17. A uniform steel rod of 2.5 mm^2 cross sectional area is heated through...

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  18. An external pressure P is applied on a cube at 0^@C so that it is equa...

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  19. A deep rectangular pond of surface area A, containing water (density =...

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  20. Two identical blocks of ice move in opposite directions with equal spe...

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