Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
Two bodies, each of mass M, are kept fixed with a separation 2L. A particle of mass m is projected from the midpoint of the line joining their cehntres, perpendicualr to the line. The gravitational constant is G. The correct statement (s) is (are)
06
Oct
Two bodies, each of mass M, are kept fixed with a separation 2L. A particle of mass m is projected from the midpoint of the line joining their cehntres, perpendicualr to the line. The gravitational constant is G. The correct statement (s) is (are) are kept fixed with a separation 2L. A particle of mass [...]
Two spherical planets P and Q have the same uniform density ρ, masses Mp and MQ and surface areas A and 4A respectively. A spherical planet R also has uniform density ρ and its mass is (MP+MQ). The escape velocities from the planets P, Q and R are VP VQ and VR respectively. Then
06
Oct
Two spherical planets P and Q have the same uniform density ρ, masses Mp and MQ and surface areas A and 4A respectively. A spherical planet R also has uniform density ρ and its mass is (MP+MQ). The escape velocities from the planets P, Q and R are VP VQ and VR respectively. Then masses [...]
A rocket is launched normal to the surface of the earth, away from the sun, along the line joining the sun and the earth. The sun is 3 × 10^5 times heavier than the earth and is at a distance 2.5 × 10^4 times larger than the radius of the earth. the escape velocity from earth’s gravitational field is ue = 11.2 m/s. The minimum initial velocity (ue) = 11.2 m/s. the minimum initial velocity (us) required for the rocket to be able to leave the sun-earth system is closest to (Ignore the rotation of the earth and the presence of any other planet
06
Oct
A rocket is launched normal to the surface of the earth, away from the sun, along the line joining the sun and the earth. The sun is 3 × 10^5 times heavier than the earth and is at a distance 2.5 × 10^4 times larger than the radius of the earth. the escape velocity from [...]
A planet of radius R = 1/10×( radius of Earth ) has the same mass density as Earth. Scientists dig a well of depth R/5 on it and lower a wire of the same length and a linear mass density 10^−3 kg m(_1) into it. If the wire is not touching anywhere, the force applied at the top of the wire by a person holding it inplace is (take the radius of Earth = 6 × 10^6 m and the acceleration due to gravity on Earth is 10 m/s^2
06
Oct
A planet of radius R = 1/10×( radius of Earth ) has the same mass density as Earth. Scientists dig a well of depth R/5 on it and lower a wire of the same length and a linear mass density 10^−3 kg m(_1) into it. If the wire is not touching anywhere, the force applied [...]
A thin uniform annular disc ( see figure) of mass M has an outer radius 4 R and inner radius 3 R. The work required to take a unit mass from point P on its axis to infinity is
06
Oct
A thin uniform annular disc ( see figure) of mass M has an outer radius 4 R and inner radius 3 R. The work required to take a unit mass from point P on its axis to infinity is A thin uniform annular disc ( see figure) of mass M has an outer radius 4 [...]
A satellite is moving with a constant speed ‘V’ in a circular orbit about the earth. An object of mass ‘m’ is ejected from the satellite such that it just escapes form the gravitational pull of the earth. At the tme of its ejection, the kinetic energy of the object is
06
Oct
A satellite is moving with a constant speed ‘V’ in a circular orbit about the earth. An object of mass ‘m’ is ejected from the satellite such that it just escapes form the gravitational pull of the earth. At the tme of its ejection, the kinetic energy of the object is each of mass M [...]
The variation of acceleration due to gravity g with distance d from centre of the earth is best represented by ( R = earth’s radius )
06
Oct
The variation of acceleration due to gravity g with distance d from centre of the earth is best represented by ( R = earth’s radius ) The variation of acceleration due to gravity g with distance d from centre of the earth is best represented by ( R = earth's radius ) October 6, 2020 [...]
A satellite is revolving in a circular orbit at a height ‘h’ from the earth’s surface (radius of earth R, h ltltR). The minimum increase in its orbital velocity required, So that the satellite could escape from the erth’s gravitational field, is close to :(Neglect the effect of atomsphere.)
06
Oct
A satellite is revolving in a circular orbit at a height ‘h’ from the earth’s surface (radius of earth R, h ltltR). The minimum increase in its orbital velocity required, So that the satellite could escape from the erth’s gravitational field, is close to :(Neglect the effect of atomsphere.) A satellite is revolving in a [...]
Tags:
A satellite is revolving in a circular orbit at a height 'h' from the earth's surface (radius of earth R ,
h ltltR). The minimum increase in its orbital velocity required ,
is close to :(Neglect the effect of atomsphere.) ,
So that the satellite could escape from the erth's gravitational field ,
Four particles, each of mass M and equidistant from each other, move along a circle of radius R under the action of their mutual gravitational attraction. The speed of each particle is:
06
Oct
Four particles, each of mass M and equidistant from each other, move along a circle of radius R under the action of their mutual gravitational attraction. The speed of each particle is: each of mass M and equidistant from each other Four particles move along a circle of radius R under the action of their [...]
From a solid sphere of mass M and radius R, a spherical portion of radius R/2 is removed, as shown in the figure Taking gravitational potential V= 0at r= ∞, the potential at (G = gravitational constatn)
06
Oct
From a solid sphere of mass M and radius R, a spherical portion of radius R/2 is removed, as shown in the figure Taking gravitational potential V= 0at r= ∞, the potential at (G = gravitational constatn) a spherical portion of radius R/2 is removed as shown in the figure Taking gravitational potential V= 0at [...]