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A liquid cools from 70^@C to 60^@C in 5 ...

A liquid cools from `70^@C` to `60^@C` in 5 minutes. If the temperature of the surrounding is constant at `30^@C`, then the time taken by the liquid to cool from `60^@C` to `50^@C` is

A

5 minutes

B

10 minutes

C

7 minuets

D

8 minutes

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TARGET PUBLICATION-Thermal Properties of Matter-Exercise
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  2. A liquid in a beaker has temperature theta(t) at time t and theta0 is ...

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

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

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

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  10. The color of star depends upon its

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

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  19. When a body has the same temperature as that of its surroundings

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  20. A body takes 8 min to cool from 60^@ C to 50^@C. If the temperature of...

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