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Value of temperature gradient is 80^(@) ...

Value of temperature gradient is `80^(@)` C/m on a rod of 0.5 m length. Temperature of hot end is `30^(@)C`, then what is the temperature of cold end ?

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`(T_(1)-T_(2))/(L)=80`
`30-T_(2)=80xxL`
`=80xx0.5`
`30-T_(2)=40`
`:.T_(2)=30-40`
`:.T_(2)=-10^(@)C`
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KUMAR PRAKASHAN-THERMAL PROPERTIES OF MATTER-Section - C Objective Questions (VSQs)
  1. What is temperature gradient ?

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  2. When temperature gradient is considered as positive and negative ?

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  3. Value of temperature gradient is 80^(@) C/m on a rod of 0.5 m length. ...

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  4. Are rate of heat emission and rate of cooling same ? Explain this.

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  5. What power is gained by a man when he eats 100 g ice in one minute ? L...

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  6. In day of summer the glass of water of ice becomes hot on table with r...

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  7. What is called absolute zero temp ?

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  8. On what does the value of coefficient of linear expansion depend ?

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  9. Give the value of coefficient of volume expansion at 0^(@)C for ideal ...

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  10. Give value of coefficient of volume expansion at room temperature for ...

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  11. On what value of alpha(V) depends ? Write its unit.

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  12. On which fcator does the thermal conductivity depend ?

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  13. On what the value of heat capacity depends ?

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  14. On which factor does the required amount of heat depend to increase te...

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  15. Write dimensional formula of heat capacity.

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  16. By what the temperature difference can be determined if the state of s...

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  17. Why water is used as coolant in automobile radiator ?

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  18. Why the water is used in the rubber bag for the fomentation on body ?

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  19. Why the winds coming from sea are cool in summer ?

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  20. Why the land of desert gets hotter in day time and colder in night tim...

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