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A metal rod is shaped into a ring with a...

A metal rod is shaped into a ring with a small gap. If this is heated,
(i) the length of the rod will increase
(ii) the gap will decrease
(iii) the gap will increase
(iv) the diameter gof the ring will increase in the same ratio as the blength of the rod

A

`(i),(ii),(iii)`

B

`(i),(ii),(iv)`

C

`(i),(iii),(iv)`

D

`(ii),(iii),(iv)`

Text Solution

Verified by Experts

The correct Answer is:
C
On heating the system, `X` , `r` , `d` all increases, since expansion of isotropic solid is similar to true photographic enlargement.
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CP SINGH-TEMPERATURE AND THERMAL EXPANSION-EXERCISES
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  2. A solid metal ball has a spherical cavity. If the ball is heatd, the v...

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  3. The temperature of water at the surface of a deep lake is 2^@C. The te...

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  4. When water is heated from 0^(@)C to 10^(@)C , its volume

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  5. A metal sheet with a cricular hole in heated. The hole

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  6. Two holes of unequal diameters d(1) and d(2)(d(1)gtd(2)) are cut in me...

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  7. In the previous question, the distance between the hole will

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  8. A metal rod is shaped into a ring with a small gap. If this is heated,...

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  9. A the temperature is increased, the time period of a pendulum

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  10. A second's pendulum gives correct time at 25^(@)C . The pendulum shaft...

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  11. A steel rod of length 25cm has a cross-sectional area of 0.8cm^(2) . T...

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  12. Two metal rods of the same length and area of cross-section are fixed ...

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  13. An aluminum sphere is dipped into water as 10^@C. If the temperature i...

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  14. A solid with coefficient of linear expansion aplha just floats in a li...

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  15. A metal ball is being weighed in liquid whose temperature is raised co...

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  16. A metal ball immersed in alcohol weights W1 at 0^@C and W2 at 50^@C. T...

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  17. A block of wood is floating on water at 0^(@)C with a certain volume V...

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  18. When a block of iron in mercury at 0^@C, fraction K1of its volume is s...

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  19. A solid whose volume does not change with temperature floats in a liqu...

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  20. In a vertical U-tube containing a luquid, the two arms are maintained ...

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