Properties of Solids & Fluids — JEE Main Previous Year Questions · PaperYodha

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Properties of Solids & Fluids · JEE Main previous year questions

207 questions asked across 16 exam years, newest first

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2009 1 question

Q362009 · 27 Apr 2009 · Shift 1
One $k g$ of a diatomic gas is at a pressure of $8 \times 1 0^{4} N / m^{2}$ . The density of the gas is $4 k g / m^{3}$ . What is the energy of the gas due to its thermal motion ?
1. A. $5 \times 1 0^{4} J$
2. B. $6 \times 1 0^{4} J$
3. C. $7 \times 1 0^{4} J$
4. D. $3 \times 1 0^{4} J$
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Answer: A

2006 1 question

Q532006 · 29 Apr 2006 · Shift 1
If the terminal speed of a sphere of gold ( $density = 19.5 k g / m^{3}$ ) is $0.2 m / s$ in a viscous liquid ( $density = 1.5 k g / m^{3}$ ), find the terminal speed of a sphere of silver ( $density = 10.5 k g / m^{3}$ ) of the same size in the same liquid
1. A. $2 S^{2} Y$
2. B. $0.133 m / s$
3. C. $0.1 m / s$
4. D. $0.2 m / s$
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Answer: C

2005 2 questions

Q942005 · 28 Apr 2005 · Shift 1
If $S$ is stress and $Y$ is young's modulus of material of a wire, the energy stored in the wire per unit volume is
1. A. $\frac{S ^{2}}{2 Y}$
2. B. $2 S^{2} Y$
3. C. $\frac{S}{2 Y}$
4. D. $\frac{2 Y}{S ^{2}}$
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Answer: A
Q952005 · 28 Apr 2005 · Shift 1
A $20 cm$ long capillary tube is dipped in water. The water rises up to $8 cm$ . If the entire arrangement is put in a freely falling elevator the length of water column in the capillary tube will be
1. A. $10 cm$
2. B. $8 cm$
3. C. $20 cm$
4. D. $4 cm$
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Answer: C

2004 3 questions

Q912004 · 24 Apr 2004 · Shift 1
Spherical balls of radius $1$ are falling in a viscous fluid of viscosity $2$ with a velocity $(T_{1}, T_{2})$ . The retarding viscous force acting on the spherical ball is
1. A.inversely proportional to both radius $R$ and velocity $v$
2. B.directly proportional to both radius $R$ and velocity $v$
3. C.directly proportional to $R$ but inversely proportional to $v$
4. D.inversely proportional to $R$ , but directly proportional to velocity $v$
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Answer: B
Q922004 · 24 Apr 2004 · Shift 1
If two soap bubbles of different radii are connected by a tube
1. A.air flows from the smaller bubble to the bigger
2. B.air flows from bigger bubble to the smaller bubble till the sizes are interchanged
3. C.air flows from the bigger bubble to the smaller bubble till the sizes become equal
4. D.there is no flow of air.
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Answer: A
Q962004 · 24 Apr 2004 · Shift 1
Two thermally insulated vessels $1$ and $2$ are filled with air at temperatures $(T_{1}, T_{2})$ , volume $(V_{1}, V_{2})$ and pressure $(P_{1}, P_{2})$ respectively. If the valve joining the two vessels is opened, the temperature inside the vessel at equilibrium will be
1. A. $T_{1} T_{2} (P_{1} V_{1} + P_{2} V_{2}) / (P_{1} V_{1} T_{2} + P_{2} V_{2} T_{1})$
2. B. $(T_{1} + T_{2}) /2$
3. C. $T_{1} + T_{2}$
4. D. $T_{1} T_{2} (P_{1} V_{1} + P_{2} V_{2}) / (P_{1} V_{1} T_{1} + P_{2} V_{2} T_{2})$
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Answer: A