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General
Easy
Question
An ideal gas undergoes the process 
as shown in the figure, the heat supplied and work done in the process is 
respectively. The ratio 
is
The correct answer is:
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2 → 3 : straight line on P-V diagram
3 → 1 : isobaric process
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One mole of an ideal diatomic gas is taken through the cycle as shown in the figure.
1 → 2 : isochoric process
2 → 3 : straight line on P-V diagram
3 → 1 : isobaric process
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The expansion of an ideal gas of mass m at a constant pressure P is given by the straight line B. Then the expansion of the same ideal gas of mass 2 m at a pressure 2P is given by the straight line
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An open and wide glass tube is immersed vertically in mercury in such a way that length 0.05 m extends above mercury level. The open end of the tube is closed and the tube is raised further by 0.43 m. The length of air column above mercury level in the tube will be : Take Patm = 76 cm of mercury
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An ideal gas is trapped inside a test tube of cross-sectional area 
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is [Take atmospheric pressure = 
]
An ideal gas is trapped inside a test tube of cross-sectional area as shown in the figure. The gas occupies a height L1 at the bottom of the tube and is separated from air at atmospheric pressure by a mercury column of mass 0.002 kg. If the tube is quickly turned isothermally, upside down so that mercury column encloses the gas from below. The gas now occupies height L1 in the tube. The ratio is [Take atmospheric pressure = ]
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An ideal gas undergoes a thermodynamics cycle as shown in figure. Which of the following graphs represents the same cycle?
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A cylindrical tube of cross-sectional area A has two air tight frictionless pistons at its two ends. The pistons are tied with a straight two ends. The pistons are tied with a straight piece of metallic wire. The tube contains a gas at atmospheric pressure P0 and temperature T0 If temperature of the gas is doubled then the tension in the wire is
A cylindrical tube of cross-sectional area A has two air tight frictionless pistons at its two ends. The pistons are tied with a straight two ends. The pistons are tied with a straight piece of metallic wire. The tube contains a gas at atmospheric pressure P0 and temperature T0 If temperature of the gas is doubled then the tension in the wire is
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PV curve for the process whose VT curve is
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A projectile of mass 1 kg is projected with a velocity of 
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Velocity-time graph for a car is semicircle as shown here. Which of the following is correct :
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The velocities of A and B are marked in the figure. The velocity of block C is (assume that the pulleys are ideal and string inextensible)
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If acceleration of A is 2 m/s2 to left and acceleration of B is 1m/s2 to left, then acceleration of C is
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