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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 length of the rod

A

the length of the rod will Increase

B

the gap will decrease

C

the gap will Increase

D

the diameter of the ring will increase in the same ratio as the length of the rod

Text Solution

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The correct Answer is:
A, C, D
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FIITJEE-HEAT AND TEMPERATURE-ASSIGNMENT PROBLEMS (OBJECTIVE) (LEVEL II)
  1. A metal rod is shaped into a ring with a small gap. If this is heated,...

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  2. A gas with (c(p))/(c(V))=gamma goes from an intial state (p(1), V(1), ...

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  3. A gas may expand either adiabatically or isothermally. A number of p-V...

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  4. A gas expands such that its initial and final temperatures are equal. ...

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  5. Two gases have the same initial pressure, volume and temperature. They...

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  6. In the previous question, if the two gases are compressed to the same ...

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  7. The first law of thermodynamics incorporates the concepts of

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  8. A vessel contains 1 mole of O2 at a temperature T. The pressure of gas...

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  9. For an ideal gas :

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  10. The molar heat capacity for an ideal gas

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  11. Cp is always greater than Cv for a gas, which of the following stateme...

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  12. A system undergoes a cyclic process in which it absorbs Q, heat and gi...

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  13. When an enclosed perfect gas is subjected to an adiabatic process :

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  14. In the isothermal expansion of an ideal gas:

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  15. An ideal gas is taken from the state A (pressure p, volume V) to the s...

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  16. Heat is supplied to a certain homogeneous sample of matter, at a unifo...

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  17. The two ends of a uniform rod of thermal conductivity k are maintained...

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  18. Three rods A,B and C have the same dimensions Their conductivities are...

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  19. The three rods described in the previous question are placed individua...

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  20. Three stars A, B and C appears as green, red and blue respectively. Th...

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