163177
Which graph represents the variation of surface tension with temperature over small temperature ranges for water :
1
2
3
4
Explanation:
\(T_c=T_0(1-\alpha t)\) i.e. surface tension decreases with increase in temperature.
NCERT-XI-I-193
6 RBTS PAPER
163178
On addition of \(\mathrm{NaCl}\) in water surface tension will: [RBQ]
1 increases
2 decreases
3 Remains same
4 Becomes zero.
Explanation:
Addition of highly soluble subtances increase surface tension.
NCERT-XI-I-196
6 RBTS PAPER
163179
Select the correct statement (s) : [RBQ]
1 Viscosity of gases Increases with Increase in Temperature
2 Viscosity of gases decreases with Increases in temperature.
3 Viscosity of gases may independent of temperature
4 Viscosity of gases may Increases or decrease with in crease in temperature depending upon the gas
Explanation:
Viscosity of gases Increases with Increase in temperature.
NCERT-XI-I-190
6 RBTS PAPER
163180
Velocity of flow of water in a horizontal pipe is \(10 \mathrm{~m} / \mathrm{s}\). find the velocity head of water \(\mathrm{g}=10 \mathrm{~m} / \mathrm{s}^2\) : [RBQ]
163181
The diameter of ball \(A\) is half of that of ball \(B\). The ratio of their terminal velocities in water will be:(Ball A \& B are made from same material) : [RBQ]
163177
Which graph represents the variation of surface tension with temperature over small temperature ranges for water :
1
2
3
4
Explanation:
\(T_c=T_0(1-\alpha t)\) i.e. surface tension decreases with increase in temperature.
NCERT-XI-I-193
6 RBTS PAPER
163178
On addition of \(\mathrm{NaCl}\) in water surface tension will: [RBQ]
1 increases
2 decreases
3 Remains same
4 Becomes zero.
Explanation:
Addition of highly soluble subtances increase surface tension.
NCERT-XI-I-196
6 RBTS PAPER
163179
Select the correct statement (s) : [RBQ]
1 Viscosity of gases Increases with Increase in Temperature
2 Viscosity of gases decreases with Increases in temperature.
3 Viscosity of gases may independent of temperature
4 Viscosity of gases may Increases or decrease with in crease in temperature depending upon the gas
Explanation:
Viscosity of gases Increases with Increase in temperature.
NCERT-XI-I-190
6 RBTS PAPER
163180
Velocity of flow of water in a horizontal pipe is \(10 \mathrm{~m} / \mathrm{s}\). find the velocity head of water \(\mathrm{g}=10 \mathrm{~m} / \mathrm{s}^2\) : [RBQ]
163181
The diameter of ball \(A\) is half of that of ball \(B\). The ratio of their terminal velocities in water will be:(Ball A \& B are made from same material) : [RBQ]
163177
Which graph represents the variation of surface tension with temperature over small temperature ranges for water :
1
2
3
4
Explanation:
\(T_c=T_0(1-\alpha t)\) i.e. surface tension decreases with increase in temperature.
NCERT-XI-I-193
6 RBTS PAPER
163178
On addition of \(\mathrm{NaCl}\) in water surface tension will: [RBQ]
1 increases
2 decreases
3 Remains same
4 Becomes zero.
Explanation:
Addition of highly soluble subtances increase surface tension.
NCERT-XI-I-196
6 RBTS PAPER
163179
Select the correct statement (s) : [RBQ]
1 Viscosity of gases Increases with Increase in Temperature
2 Viscosity of gases decreases with Increases in temperature.
3 Viscosity of gases may independent of temperature
4 Viscosity of gases may Increases or decrease with in crease in temperature depending upon the gas
Explanation:
Viscosity of gases Increases with Increase in temperature.
NCERT-XI-I-190
6 RBTS PAPER
163180
Velocity of flow of water in a horizontal pipe is \(10 \mathrm{~m} / \mathrm{s}\). find the velocity head of water \(\mathrm{g}=10 \mathrm{~m} / \mathrm{s}^2\) : [RBQ]
163181
The diameter of ball \(A\) is half of that of ball \(B\). The ratio of their terminal velocities in water will be:(Ball A \& B are made from same material) : [RBQ]
163177
Which graph represents the variation of surface tension with temperature over small temperature ranges for water :
1
2
3
4
Explanation:
\(T_c=T_0(1-\alpha t)\) i.e. surface tension decreases with increase in temperature.
NCERT-XI-I-193
6 RBTS PAPER
163178
On addition of \(\mathrm{NaCl}\) in water surface tension will: [RBQ]
1 increases
2 decreases
3 Remains same
4 Becomes zero.
Explanation:
Addition of highly soluble subtances increase surface tension.
NCERT-XI-I-196
6 RBTS PAPER
163179
Select the correct statement (s) : [RBQ]
1 Viscosity of gases Increases with Increase in Temperature
2 Viscosity of gases decreases with Increases in temperature.
3 Viscosity of gases may independent of temperature
4 Viscosity of gases may Increases or decrease with in crease in temperature depending upon the gas
Explanation:
Viscosity of gases Increases with Increase in temperature.
NCERT-XI-I-190
6 RBTS PAPER
163180
Velocity of flow of water in a horizontal pipe is \(10 \mathrm{~m} / \mathrm{s}\). find the velocity head of water \(\mathrm{g}=10 \mathrm{~m} / \mathrm{s}^2\) : [RBQ]
163181
The diameter of ball \(A\) is half of that of ball \(B\). The ratio of their terminal velocities in water will be:(Ball A \& B are made from same material) : [RBQ]
163177
Which graph represents the variation of surface tension with temperature over small temperature ranges for water :
1
2
3
4
Explanation:
\(T_c=T_0(1-\alpha t)\) i.e. surface tension decreases with increase in temperature.
NCERT-XI-I-193
6 RBTS PAPER
163178
On addition of \(\mathrm{NaCl}\) in water surface tension will: [RBQ]
1 increases
2 decreases
3 Remains same
4 Becomes zero.
Explanation:
Addition of highly soluble subtances increase surface tension.
NCERT-XI-I-196
6 RBTS PAPER
163179
Select the correct statement (s) : [RBQ]
1 Viscosity of gases Increases with Increase in Temperature
2 Viscosity of gases decreases with Increases in temperature.
3 Viscosity of gases may independent of temperature
4 Viscosity of gases may Increases or decrease with in crease in temperature depending upon the gas
Explanation:
Viscosity of gases Increases with Increase in temperature.
NCERT-XI-I-190
6 RBTS PAPER
163180
Velocity of flow of water in a horizontal pipe is \(10 \mathrm{~m} / \mathrm{s}\). find the velocity head of water \(\mathrm{g}=10 \mathrm{~m} / \mathrm{s}^2\) : [RBQ]
163181
The diameter of ball \(A\) is half of that of ball \(B\). The ratio of their terminal velocities in water will be:(Ball A \& B are made from same material) : [RBQ]