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A sample of 0.1 g of water at 100 degree C and normal pressure (1.013 × 105 Nm^−2) requires 54 cal of heat energy of convert to steam at 100 degree C. If the volume of the steam produced is 167.1 cc, the change in internal energy of the sample, is
31
Aug
A sample of 0.1 g of water at 100 degree C and normal pressure (1.013 × 105 Nm^−2) requires 54 cal of heat energy of convert to steam at 100 degree C. If the volume of the steam produced is 167.1 cc, the change in internal energy of the sample, is A sample of 0.1 [...]
The work done to raise a mass m from the surface of the earth to a height h, which is equal to the radius of the earth, is :
29
Aug
The work done to raise a mass m from the surface of the earth to a height h, which is equal to the radius of the earth, is : is The work done to raise a mass m from the surface of the earth to a height h which is equal to the radius of [...]
The height at which the weight of a body becomes 1/16th, its weight on the surface of earth (radius R), is
29
Aug
The height at which the weight of a body becomes 1/16th, its weight on the surface of earth (radius R), is is its weight on the surface of earth (radius R) The height at which the weight of a body becomes 1/16th August 29, 2020 Category: Chapter 12 - Gravitation , NEET Last 32 Years [...]
A satellite of mass m is orbiting the earth (of radius R) at a height h from its surface. The total energy of the satellite in terms of g0, the value of acceleration due to gravity at the earth’s surface, is
29
Aug
A satellite of mass m is orbiting the earth (of radius R) at a height h from its surface. The total energy of the satellite in terms of g0, the value of acceleration due to gravity at the earth’s surface, is A satellite of mass m is orbiting the earth (of radius R) at a [...]
Two particles of masses m and M are initially at rest at an infinite distance apart. They move towards each other and gain speeds due to gravitational attraction. Find their speeds when the separation between the masses becomes equal to d.
27
Aug
Two particles of masses m and M are initially at rest at an infinite distance apart. They move towards each other and gain speeds due to gravitational attraction. Find their speeds when the separation between the masses becomes equal to d. If g is the acceleration due to gravity on the earth's surface is the [...]
If g is the acceleration due to gravity on the earth’s surface, the gain in the potential energy of an object of mass m raised from the surface of the earth to a height equal to the radius R of the earth, is
27
Aug
If g is the acceleration due to gravity on the earth’s surface, the gain in the potential energy of an object of mass m raised from the surface of the earth to a height equal to the radius R of the earth, is If g is the acceleration due to gravity on the earth's surface [...]
The earth (mass = 6 x 10 24 kg ) revolves around the sun with an angular velocity of 2 x 10 −7 rad/s in a circular orbit of radius 1.5 x 10 8 km . The force exerted by the sun on the earth, in newtons, is:
27
Aug
The earth (mass = 6 x 10 24 kg ) revolves around the sun with an angular velocity of 2 x 10 −7 rad/s in a circular orbit of radius 1.5 x 10 8 km . The force exerted by the sun on the earth, in newtons, is: in newtons is The earth (mass = [...]
If the ratio of specific heat of a gas at constant pressure to that at constant volume is γ, the change in internal energy of the mass of gas, when the volume changes from V to 2V at constant pressure P, is
26
Aug
If the ratio of specific heat of a gas at constant pressure to that at constant volume is γ, the change in internal energy of the mass of gas, when the volume changes from V to 2V at constant pressure P, is If the ratio of specific heat of a gas at constant pressure to [...]
A stone tied to a string of length l is whirled in a vertical circle with the other end of the string at the centre. At a certain instant of time, the stone is at its lowest position and has a speed u. The magnitude of the change in velocity as it reaches a position, where the string is horizontal, is
24
Aug
A stone tied to a string of length l is whirled in a vertical circle with the other end of the string at the centre. At a certain instant of time, the stone is at its lowest position and has a speed u. The magnitude of the change in velocity as it reaches a position, [...]
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A stone tied to a string of length l is whirled in a vertical circle with the other end of the string at the centre. At a certain instant of time ,
is ,
the stone is at its lowest position and has a speed u. The magnitude of the change in velocity as it reaches a position ,
where the string is horizontal ,
In the interference of waves from two sources of intensities I o and 4I o , the intensity at a point where the phase difference is π, is?
24
Aug
In the interference of waves from two sources of intensities I o and 4I o , the intensity at a point where the phase difference is π, is? In the interference of waves from two sources of intensities I o and 4I o is the intensity at a point where the [...]