Physics-
General
Easy
Question
A volume (V)-temperature (T) diagram was obtained when a given mass of gas was heated. During the heating process from state 1 to state 2, the pressure :
- remained constant
- decreased
- increased
- changed erratically
The correct answer is: changed erratically
Related Questions to study
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The distribution of relative intensity I (
) of blackbody radiation from a is shown in the figure. If the Wien solid body versus the wavelength displacement law constant is 2.9 × 10-3 mK, what is the approximate temperature of the object?
The distribution of relative intensity I () of blackbody radiation from a is shown in the figure. If the Wien solid body versus the wavelength displacement law constant is 2.9 × 10-3 mK, what is the approximate temperature of the object?
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Five rods of same material and same length are joined as shown. Cross-section of rods ab, ad and bc are A, 2A and 3A respectively. Ends a and c are maintained at temperatures 200°C and 0°C respectively.
If x has the value calculated in above question. Then temperature of junction b or d is:
Five rods of same material and same length are joined as shown. Cross-section of rods ab, ad and bc are A, 2A and 3A respectively. Ends a and c are maintained at temperatures 200°C and 0°C respectively.
If x has the value calculated in above question. Then temperature of junction b or d is:
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Five rods of same material and same length are joined as shown. Cross-section of rods ab, ad and bc are A, 2A and 3A respectively. Ends a and c are maintained at temperatures 200°C and 0°C respectively.
For what cross-section x of rod dc there will be no heat flow through rod bd.
Five rods of same material and same length are joined as shown. Cross-section of rods ab, ad and bc are A, 2A and 3A respectively. Ends a and c are maintained at temperatures 200°C and 0°C respectively.
For what cross-section x of rod dc there will be no heat flow through rod bd.
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In figure a, string 1 has a linear mass density of 3 g/m, and string 2 has a linear mass density of 4.5 g/m. They are under tension due to the hanging block of mass M = 500 g as shown in figure (A)
The block is now divided into two blocks (with M1 + M2 = M) and the apparatus is rearranged as shown in figure b. If the speeds of transverse waves in the two strings are equal the values of M1 and M2 will be respectively
In figure a, string 1 has a linear mass density of 3 g/m, and string 2 has a linear mass density of 4.5 g/m. They are under tension due to the hanging block of mass M = 500 g as shown in figure (A)
The block is now divided into two blocks (with M1 + M2 = M) and the apparatus is rearranged as shown in figure b. If the speeds of transverse waves in the two strings are equal the values of M1 and M2 will be respectively
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In figure a, string 1 has a linear mass density of 3 g/m, and string 2 has a linear mass density of 4.5 g/m. They are under tension due to the hanging block of mass M = 500 g as shown in figure (A)
The ratio of speeds of transverse wave in the string 1 to that of string 2 is
In figure a, string 1 has a linear mass density of 3 g/m, and string 2 has a linear mass density of 4.5 g/m. They are under tension due to the hanging block of mass M = 500 g as shown in figure (A)
The ratio of speeds of transverse wave in the string 1 to that of string 2 is
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S1 & S2 are two coherent sources of sound having no initial phase difference. The velocity of sound is 330 m/s. No minima will be formed on the line passing through S2 and perpendicular to the line joining S1 and S2 , if the frequency of both the sources is:
S1 & S2 are two coherent sources of sound having no initial phase difference. The velocity of sound is 330 m/s. No minima will be formed on the line passing through S2 and perpendicular to the line joining S1 and S2 , if the frequency of both the sources is:
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A string consists of two parts attached at x = 0. The right part of the string (x > 0) has mass m r per unit length and the left part of the string (x < 0) has mass 
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A string consists of two parts attached at x = 0. The right part of the string (x > 0) has mass m r per unit length and the left part of the string (x < 0) has mass per unit length. The string tension is T. If a wave of unit amplitude travels along the left part of the string, as shown in the figure, what is the amplitude of the wave that is transmitted to the right part of the string?
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The figure shows a simple harmonic progressive transverse wave, progressing towards the right. The particle having the maximum acceleration directed downwards is represented by
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Two graphs of the same harmonic wave are shown below. The graph (1) on the left shows the displacement of wave y, as a function of position x for a given instant of time. The graph (2) on the right shows the displacement of wave as a function of time 't' for a given position. The speed of the wave is
Two graphs of the same harmonic wave are shown below. The graph (1) on the left shows the displacement of wave y, as a function of position x for a given instant of time. The graph (2) on the right shows the displacement of wave as a function of time 't' for a given position. The speed of the wave is
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The prong of a electrically operated tuning fork is connected to a long 
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The prong of a electrically operated tuning fork is connected to a long and tension 25 N. The maximum velocity of them string of prong is 1 cm/s, then the average power needed to drive the prong is:
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A small bob attached to a light inextensible thread of length l has a periodic time T when allowed to vibrate as a simple pendulum. The thread is now suspended from a fixed end O of a vertical rigid rod of length 
(as in figure). If now the pendulum performs periodic oscillations in this arrangement, the periodic time will be
A small bob attached to a light inextensible thread of length l has a periodic time T when allowed to vibrate as a simple pendulum. The thread is now suspended from a fixed end O of a vertical rigid rod of length (as in figure). If now the pendulum performs periodic oscillations in this arrangement, the periodic time will be
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A uniform bar of mass m and length L is translating on a smooth horizontal plane with velocity V0 when a particle of same mass m travelling with same velocity V0 as shown strikes normally and becomes embedded in the bar, then angular velocity of the system after collision
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A uniform cylinder free to turn around a fixed axis has a string wrapped around it as shown to the right. The string is pulled with a force F equal to the cylinders weight. What is the acceleration of the string?
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Two identical disks are positioned on a vertical axis. The bottom disk is 0 wrotating at angular velocity and has rotational kinetic energy KE0 . The top disk is initially at rest. It is allowed to fall, and sticks to the bottom disk. What is the rotational kinetic energy of the system after the collision?
. 
Two identical disks are positioned on a vertical axis. The bottom disk is 0 wrotating at angular velocity and has rotational kinetic energy KE0 . The top disk is initially at rest. It is allowed to fall, and sticks to the bottom disk. What is the rotational kinetic energy of the system after the collision?
.
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A thin plate of mass M, length L, and width 2d is mounted vertically on a frictionless axle along the z-axis, as shown. Initially the object is at rest. It is then tapped , which produces an angular impulse Ht with a hammer to provide a torque of the wdt about the z-axis of magnitude 
What is the angular speed plate about the z-axis after the tap?
A thin plate of mass M, length L, and width 2d is mounted vertically on a frictionless axle along the z-axis, as shown. Initially the object is at rest. It is then tapped , which produces an angular impulse Ht with a hammer to provide a torque of the wdt about the z-axis of magnitude What is the angular speed plate about the z-axis after the tap?
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