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  1. >>Class 11
  2. >>Physics
  3. >>Thermal Properties of Matter
  4. >>JEE Mains Questions

Thermal Properties Of Matter

Physics
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JEE MainsJEE AdvancedNEETBITSATEasy QsMed QsHard Qs
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An ideal gas goes through a reversible cycle a→b→c→d has the V- T diagram shown below. Process d→a and b→c are adiabatic.
The corresponding P-V diagram for the process is ( all figure are schematic and not drawn to scale).

A
B
C
D
Hard
JEE Mains
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A leak proof cylinder of length 1m, made of a metal which has low coefficient of expansion is floating vertically in water at 0oC such that its height above the water surface is 20cm. When the temperature of water is increased to 4oC, the height of the cylinder above the water surface becomes 21cm. The density of water at T=4oC, relative to the density at T=0oC is close to:

A
1.26
B
1.03
C
1.04
D
1.01
Medium
JEE Mains
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A compressive force, F is applied at the two ends of a long thin steel rod. It is hated, simultaneously, such that its temperature increases by △T . The net change in its length is zero. Let l be the length of the rod, A its area of cross-section, Y its Young,s modulus, and α its coefficient of linear expansion. Then, F is equal to :

A
l2Yα△T
B
lAYα△T
C
α△TAY​
D
AYα△T
Medium
JEE Mains
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Which of the following shows the correct relationship between the pressure ′P′ and density ρ of an ideal gas at constant temperature ? 

A
B
C
D
Medium
JEE Mains
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