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A steel rod of length 1 m rests on a smo...

A steel rod of length 1 m rests on a smooth horizontal base. If it is heated from `0^(@)C` to `100^(@)C`, what is the longitudinal stress developed ?
`(Y=9xx10^(9)N//m,alpha=10xx10^(-6)""^(@)C^(-1))`

A

Zero

B

0.0012

C

9 Pa

D

`9xx10^(-4)` Pa

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A
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AAKASH SERIES-THERMAL PROPERTIES OF MATTER-EXERCISE-2
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  2. A clock , with a brass pendulum, keeps correct time at 20^(@)C, but lo...

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  3. A steel rod of length 1 m rests on a smooth horizontal base. If it is ...

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  4. A steel ball initially at a pressure of 1.0xx10^(5) Pa is heated from ...

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  5. A vessel is half filled with a liquid at 0^(@)C. When the vessel is he...

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  6. A liquid column of height 80 cm at 0^(@)C balances the same liquid of ...

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  7. gamma(A) of liquid is 7/8 of gamma(R) of liquid. alpha(g) of vessel is

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  8. Coefficient of real expansion of a liquid is 0.000182//""^(@)C. If coe...

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  9. Co-efficient of apparent expansions of a liquid in Gold vessel is G an...

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  10. A liquid occupies half of a vessel at a particular temperature. The vo...

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  11. Densities of a liquid at 30^(@)Cand80^(@)C are 0.6gm/c.c and 0.54 gm/c...

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  12. The value of coefficient of volume expansion of glycerine is 5xx10^(-4...

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  13. A barometer with a brass scale correct at 0^(@)C reads 70 cm of mercur...

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  14. The density of a liquid of coefficient of cubical expansion gamma" is ...

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  15. The apparent change in volume of a liquid per 100^(@)C is 8%. Then coe...

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  16. If the coefficient of real expansion gamma(r) is 1% more then coeffici...

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  17. The volume of a gas at 20^(@)C is 100 CC at normal pressure when it is...

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  18. If a given mass of a gas occupies a volume 100 cc at one atmospheric p...

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  19. A litre of air is heated from 27^(@)C to 177^(@)C at constant pressure...

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  20. The pressure of a given mass of gas at 27^(@)C is 75 cm of mercury. Fi...

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