Physics-
General
Easy
Question
An ideal gas of Molar mass M is contained in a vertical tube of height H, closed at both ends. The tube is accelerating vertically upwards with acceleration g. Then, the ratio of pressure at the bottom and the mid point of the tube will be
- exp[2MgH/RT]
- exp[–2MgH/RT]
- exp[MgH/RT]
- MgH/RT
The correct answer is: exp[MgH/RT]
Related Questions to study
physics-
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
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
physics-General
physics-
One mole of a gas expands obeying the relation as shown in the P/V diagram. The maximum temperature in this process is equal to
One mole of a gas expands obeying the relation as shown in the P/V diagram. The maximum temperature in this process is equal to
physics-General
physics-
The process AB is shown in the diagram. As the gas is taken from A to B, its temperature
The process AB is shown in the diagram. As the gas is taken from A to B, its temperature
physics-General
physics-
An ideal gas follows a process PT = constant. The correct graph between pressure & volume is
An ideal gas follows a process PT = constant. The correct graph between pressure & volume is
physics-General
physics-
An ideal gas undergoes a thermodynamics cycle as shown in figure. Which of the following graphs represents the same cycle?
An ideal gas undergoes a thermodynamics cycle as shown in figure. Which of the following graphs represents the same cycle?
physics-General
physics-
An ideal gas mixture filled inside a balloon expands according to the relation PV2/3 = constant. The temperature inside the balloon is
An ideal gas mixture filled inside a balloon expands according to the relation PV2/3 = constant. The temperature inside the balloon is
physics-General
physics-
PV curve for the process whose VT curve is
PV curve for the process whose VT curve is
physics-General
physics-
A long plank P of the mass 5 kg is placed on a smooth floor. On P is placed a block Q of mass 2 kg. The coefficient of friction between P and Q is 0.5. If a horizontal force 15N is applied to Q, as shown, and you may take g as 10N/kg.
A long plank P of the mass 5 kg is placed on a smooth floor. On P is placed a block Q of mass 2 kg. The coefficient of friction between P and Q is 0.5. If a horizontal force 15N is applied to Q, as shown, and you may take g as 10N/kg.
physics-General
physics-
From a uniform disc of radius R, an equilateral triangle of side 3 R is cut as shown. The new position of centre of mass is :
From a uniform disc of radius R, an equilateral triangle of side 3 R is cut as shown. The new position of centre of mass is :
physics-General
physics-
A truck moving on horizontal road towards east with velocity 20 ms–1 collides elastically with a light ball moving with velocity 25 ms–1 along west. The velocity of the ball just after collision
A truck moving on horizontal road towards east with velocity 20 ms–1 collides elastically with a light ball moving with velocity 25 ms–1 along west. The velocity of the ball just after collision
physics-General
physics-
A force F = Be–Ct acts on a particle whose mass is m and whose velocity is 0 at t = 0. It’s terminal velocity is :
A force F = Be–Ct acts on a particle whose mass is m and whose velocity is 0 at t = 0. It’s terminal velocity is :
physics-General
physics-
A cuboid ABCDEFGH is anisotropic with . Coefficient of superficial expansion of faces can be
A cuboid ABCDEFGH is anisotropic with . Coefficient of superficial expansion of faces can be
physics-General
physics-
In the system shown in the figure there is no friction anywhere. The block C goes down by a distance x0 = 10 cm with respect to wedge D when system is released from rest. The velocity of A with respect to B will be (g=10 m/s2 )
In the system shown in the figure there is no friction anywhere. The block C goes down by a distance x0 = 10 cm with respect to wedge D when system is released from rest. The velocity of A with respect to B will be (g=10 m/s2 )
physics-General
physics-
Block B of mass 100 kg rests on a rough surface of friction coefficient = 1/3. A rope is tied to block B as shown in figure. The maximum acceleration with which boy A of 25 kg can climbs on rope without making block move is :
Block B of mass 100 kg rests on a rough surface of friction coefficient = 1/3. A rope is tied to block B as shown in figure. The maximum acceleration with which boy A of 25 kg can climbs on rope without making block move is :
physics-General
physics-
Two masses m and M are attached to the strings as shown in the figure. If the system is in equilibrium, then
Two masses m and M are attached to the strings as shown in the figure. If the system is in equilibrium, then
physics-General