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A meter rod made of steel is correct at ...

A meter rod made of steel is correct at `0^(@)C` and other meter rod of same material is correct at `30^(@)C`. If `alpha=12xx10^(-6)//""^(@)C`, the difference between their lengths at `20^(@)C` is

A

0.024 cm

B

0.012 cm

C

0.036 cm

D

0.048 cm

Text Solution

Verified by Experts

The correct Answer is:
C
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AAKASH SERIES-THERMAL PROPERTIES OF MATTER-EXERCISE-3
  1. The length of each rail is 10m. The linear expansion of steel is 12xx1...

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  2. A steel tape is callibrated at 20^(@)C. When the temperature of the da...

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  3. A meter rod made of steel is correct at 0^(@)C and other meter rod of ...

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  4. A steel rod of length 5m is fixed rigidly between two supports. a of s...

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  5. There is some change in length when a 33000 N tensile force is applied...

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  6. Two uniform metal rods of length L(1)andL(2) and their linear coeffici...

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  7. An iron rod of length 50cm is joined end to end to an aluminium rod of...

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  8. A pendulum clock is 5 seconds fast at a temperature of 15^(@)C and 10 ...

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  9. A pendulum clock gives correct time at 20^(@)C at a place where g=10m/...

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  10. A steel meter scale is to be ruled so that millimetre intervals are ac...

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  11. An iron ball of diameter 6cm and is 0.01 mm too large to pass through ...

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  12. Steel rod at 40^(@)C is observed to be 1 m long when measured by a bra...

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  13. A sphere of coefficient of linear expansion alpha, mass 'm' and radius...

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  14. A thin circular metal disc of radius 500mm is set rotating about a cen...

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  15. Two thin metal strips, one of brass and the other of iron are fastened...

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  16. A wire of length L(0) is supplied heat to raise its temperature by T. ...

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  17. A mercury thermometer contains 2c.c. of Hg. At 0^(@)C. Distance betwee...

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  18. Volume of mercury in the bulb of a thermometer is 10^(-6)m^(3). Area o...

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  19. A vessel contains a liquid filled with 1/10th of its volume. Another v...

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  20. coefficient of real expansion of mercury is 0.18xx10^(-3)//""^(@)C. If...

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