Part 1
A binary star system consists of two stars. One star has twice the mass of the other. The star rotates about their common centre of mass. Which of the following statements is correct ?
22
Sep
A binary star system consists of two stars. One star has twice the mass of the other. The star rotates about their common centre of mass. Which of the following statements is correct ? A binary star system consists of two stars. One star has twice the mass of the other. The star rotates about [...]
The gravitational field in a region is given by E = (4i^+ j^ )N/kg. Work done by this field is zero when a particle is moved along the line
20
Sep
The gravitational field in a region is given by E = (4i^+ j^ )N/kg. Work done by this field is zero when a particle is moved along the line The gravitational field in a region is given by E = (4i^+ j^ )N/kg. Work done by this field is zero when a particle is moved [...]
The gravitational field due to a mass distribution is E = A/x2 If potential at infinity is zero and A be a constant. Then the potential at x is
20
Sep
The gravitational field due to a mass distribution is E = A/x2 If potential at infinity is zero and A be a constant. Then the potential at x is The gravitational field due to a mass distribution is E = A/x2 If potential at infinity is zero and A be a constant. Then the potential [...]
A planet of small mass m moves around the sun of mass M along an elliptical orbit such that its minimum and maximum distance from sun are r and R respectively. Its period of revolution will be:
20
Sep
A planet of small mass m moves around the sun of mass M along an elliptical orbit such that its minimum and maximum distance from sun are r and R respectively. Its period of revolution will be: A planet of small mass m moves around the sun of mass M along an elliptical orbit such [...]
A satellite revolving in a circular equatorial orbit from west to east appears over a certain point on the equator every 8 hours therefore it’s period is
20
Sep
A satellite revolving in a circular equatorial orbit from west to east appears over a certain point on the equator every 8 hours therefore it’s period is A satellite revolving in a circular equatorial orbit from west to east appears over a certain point on the equator every 8 hours therefore it's period is September [...]
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 centres, perpendicular to the line. The gravitational constant is G. The correct statement is
20
Sep
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 centres, perpendicular to the line. The gravitational constant is G. The correct statement is are kept fixed with a separation 2L. A particle of mass m is [...]
Two rings having masses M and 2M, respectively, having the same radius are placed coaxially as shown in the figure. If the mass distribution on both the rings is non-uniform, then the gravitational potential at point P is?
20
Sep
Two rings having masses M and 2M, respectively, having the same radius are placed coaxially as shown in the figure. If the mass distribution on both the rings is non-uniform, then the gravitational potential at point P is? having the same radius are placed coaxially as shown in the figure. If the mass distribution on [...]
Two concentric shells have masses M and m and their radii are R and r, respectively, where R>r. What is the gravitational potential at their common centre?
20
Sep
Two concentric shells have masses M and m and their radii are R and r, respectively, where R>r. What is the gravitational potential at their common centre? respectively Two concentric shells have masses M and m and their radii are R and r where R>r. What is the gravitational potential at their common centre? September [...]
Two identical spherical balls each of mass m are placed as shown in figure. Plot the variation of g (gravitational intensity) along the x-axis.
20
Sep
Two identical spherical balls each of mass m are placed as shown in figure. Plot the variation of g (gravitational intensity) along the x-axis. Two identical spherical balls each of mass m are placed as shown in figure. Plot the variation of g (gravitational intensity) along the x-axis. September 20, 2020 Category: Chapter 10 - [...]
A uniform solid sphere of radius R produces a gravitational acceleration of ag on its surface. At what two distance from the centre of the sphere the acceleration due to gravity is ag /4?
20
Sep
A uniform solid sphere of radius R produces a gravitational acceleration of ag on its surface. At what two distance from the centre of the sphere the acceleration due to gravity is ag /4? A uniform solid sphere of radius R produces a gravitational acceleration of ag on its surface. At what two distance from [...]