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A rod, when heated from 0^(@)C to 50^(@)...

A rod, when heated from `0^(@)C` to `50^(@)C`, expands by 1.0 mm. Another rod, twice as long as the first at `0^(@)C` and of the same material, is heated from `0^(@)C` to `25^(@)C`. The second rod will expand by …………….. .

A

0.5 mm

B

1.0 mm

C

2.0 mm

D

4.0 mm

Text Solution

Verified by Experts

The correct Answer is:
b
`Deltal=l_(0)alphaDeltat`
`(Deltal_(2))/(Deltal_(1))=(2l_(o)Deltat_(2))/(l_(o)Deltat_(1))rArr (2xx25)/(50)xx1.0 rArr Deltal_(2)=1.0` mm
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FULL MARKS-HEAT AND THERMODYNAMICS-ADDITIONAL QUESTIONS SOLVED (I. Choose the correct answer from the following)
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  2. Boyles' law is applicable in ……………. .

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  5. Density of water is maximum at the temperature of ………………. .

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  7. In the given diagram theta is …………

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  8. In ideal gas is expanding such that PT^(2) = constant. The coefficient...

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  11. Which of the following instruments is used in the measurement of tempe...

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