Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
What is the minimum energy required to launch a satellite of mass m from the surface of a planet of mass M and radius R in a circular orbit at an altitude of 2R?
06
Oct
What is the minimum energy required to launch a satellite of mass m from the surface of a planet of mass M and radius R in a circular orbit at an altitude of 2R? What is the minimum energy required to launch a satellite of mass m from the surface of a planet of mass [...]
The mass of a spaceship is 1000 kg. It is to be launched from the earth’s surface out into free space. The value of g and R (radius of earth) are 10 ms^2 and 6400 km respectively. The required energy for this work will be:
06
Oct
The mass of a spaceship is 1000 kg. It is to be launched from the earth’s surface out into free space. The value of g and R (radius of earth) are 10 ms^2 and 6400 km respectively. The required energy for this work will be: Find the percentage decrease in weight of a body when [...]
Two bodies of masses m and 4 m are placed at a distance r. The gravitational potential at a point on the line joining them where the gravitational field is zeo is
06
Oct
Two bodies of masses m and 4 m are placed at a distance r. The gravitational potential at a point on the line joining them where the gravitational field is zeo is Two bodies of masses m and 4 m are placed at a distance r. The gravitational potential at a point on the line [...]
An artificial satellite is moving in a circular orbit around the earth with a speed equal to half the magnitude of escape velocity from the surface of earth. R is the radius of earth and g is acceleration due to gravity at the surface of earth. (R = 6400 km).
06
Oct
An artificial satellite is moving in a circular orbit around the earth with a speed equal to half the magnitude of escape velocity from the surface of earth. R is the radius of earth and g is acceleration due to gravity at the surface of earth. (R = 6400 km). Find the percentage decrease in [...]
The earth is assumed to be a sphere of radius R. A platform is arranged at a height R from the surface of the fve, where ve is its escape velocity form the surface of the earth. The value of f is
06
Oct
The earth is assumed to be a sphere of radius R. A platform is arranged at a height R from the surface of the fve, where ve is its escape velocity form the surface of the earth. The value of f is The earth is assumed to be a sphere of radius R. A platform [...]
A man can throw a ball at a speed on the earth which can cross a river of width 10 m. Ravi reaches on an imaginary planet whose mean density is twice that of the earth. Find out the maximum possible radius of the planet so that if Ravi throws the ball at the same speed it may escape from the planet. Given radius of the earth = 6.4 × 10^6 m.
06
Oct
A man can throw a ball at a speed on the earth which can cross a river of width 10 m. Ravi reaches on an imaginary planet whose mean density is twice that of the earth. Find out the maximum possible radius of the planet so that if Ravi throws the ball at the same [...]
A sky laboratory of mass 3 × 10^3 kg has to be lifted from one circular orbit of radius 2 R into another circular orbit of radius 3R. Calculate the minimum energy required if the radius of earth is R = 6.4 × 10^6 m and g = 10 m/s^2.
06
Oct
A sky laboratory of mass 3 × 10^3 kg has to be lifted from one circular orbit of radius 2 R into another circular orbit of radius 3R. Calculate the minimum energy required if the radius of earth is R = 6.4 × 10^6 m and g = 10 m/s^2. Find the percentage decrease in [...]
The gravitational field in a region is given by E = ( 3i – 4j ) N/ kg. Find out the work done ( in joule) in displacing a particle by 1 m along the line 4y = 3x +9.
06
Oct
The gravitational field in a region is given by E = ( 3i – 4j ) N/ kg. Find out the work done ( in joule) in displacing a particle by 1 m along the line 4y = 3x +9. The gravitational field in a region is given by E = ( 3i - 4j [...]
Taking the earth to be a uniform sphere of radius 6400 km and the value of g at the surface to be 10 m/s^2 calculate the energy needed to raise a satellite of mass 2000 kg to a height of 800 km a above the earth’s surface and to set it into circular orbit at that altitude.
06
Oct
Taking the earth to be a uniform sphere of radius 6400 km and the value of g at the surface to be 10 m/s^2 calculate the energy needed to raise a satellite of mass 2000 kg to a height of 800 km a above the earth’s surface and to set it into circular orbit at [...]
The small dense stars rotate about their common centre of mass as a binary system, each with a period of 1 year. One star has mass double than that of the other, while mass of the lighter star is one-third the mass of the Sun. The distance between the two stars is r and the distance of the earth from the Sun is R, find the relation between r and R.
06
Oct
The small dense stars rotate about their common centre of mass as a binary system, each with a period of 1 year. One star has mass double than that of the other, while mass of the lighter star is one-third the mass of the Sun. The distance between the two stars is r and the [...]
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each with a period of 1 year. One star has mass double than that of the other ,
find the relation between r and R. ,
The small dense stars rotate about their common centre of mass as a binary system ,
while mass of the lighter star is one-third the mass of the Sun. The distance between the two stars is r and the distance of the earth from the Sun is R ,