359770 The period of revolution of an earth's satellite close to surface of earth is \(90 \mathrm{~min}\). The time period of another satellite in an orbit at a distance of four times the radius of earth from its centre will be

359771 A small planet is revolving around a very massive star in a circular orbit of radius \(R\) with a period of revolution \(T\). If the gravitational force between the planet and the star were proportional to \(R^{-5 / 2}\), then \(T\) would be proportional

359772 Two satellites \(A\) and \(B\) revolve round the same planet in coplanar circular orbits lying in the same plane. Their periods of revolutions are \(1\;h\) and \(8\;h\), respectively. The radius of the orbit of \(A\) is \({10^4}\;km\). The speed of \(B\) is relative to \(A\), when they are closed in \(km{\rm{/}}h\) is

359773 A satellite is revolving in a circular orbit at a height ' \(h\) ' from the earth's surface (radius of earth \(R;h < < R\) ). The minimum increase in its orbital velocity required, so that the satellite could escape from the earth's gravitational field, is close to : (Neglect the effect of atmosphere.)

359774 The orbital velocity of an artificial satellite in a circular orbit just above the earth's surface is \(v_{0}\). The orbital velocity of a satellite orbiting at an altitude of half of the radius, is

359770 The period of revolution of an earth's satellite close to surface of earth is \(90 \mathrm{~min}\). The time period of another satellite in an orbit at a distance of four times the radius of earth from its centre will be

359771 A small planet is revolving around a very massive star in a circular orbit of radius \(R\) with a period of revolution \(T\). If the gravitational force between the planet and the star were proportional to \(R^{-5 / 2}\), then \(T\) would be proportional

359772 Two satellites \(A\) and \(B\) revolve round the same planet in coplanar circular orbits lying in the same plane. Their periods of revolutions are \(1\;h\) and \(8\;h\), respectively. The radius of the orbit of \(A\) is \({10^4}\;km\). The speed of \(B\) is relative to \(A\), when they are closed in \(km{\rm{/}}h\) is

359773 A satellite is revolving in a circular orbit at a height ' \(h\) ' from the earth's surface (radius of earth \(R;h < < R\) ). The minimum increase in its orbital velocity required, so that the satellite could escape from the earth's gravitational field, is close to : (Neglect the effect of atmosphere.)

359774 The orbital velocity of an artificial satellite in a circular orbit just above the earth's surface is \(v_{0}\). The orbital velocity of a satellite orbiting at an altitude of half of the radius, is

359770 The period of revolution of an earth's satellite close to surface of earth is \(90 \mathrm{~min}\). The time period of another satellite in an orbit at a distance of four times the radius of earth from its centre will be

359771 A small planet is revolving around a very massive star in a circular orbit of radius \(R\) with a period of revolution \(T\). If the gravitational force between the planet and the star were proportional to \(R^{-5 / 2}\), then \(T\) would be proportional

359772 Two satellites \(A\) and \(B\) revolve round the same planet in coplanar circular orbits lying in the same plane. Their periods of revolutions are \(1\;h\) and \(8\;h\), respectively. The radius of the orbit of \(A\) is \({10^4}\;km\). The speed of \(B\) is relative to \(A\), when they are closed in \(km{\rm{/}}h\) is

359773 A satellite is revolving in a circular orbit at a height ' \(h\) ' from the earth's surface (radius of earth \(R;h < < R\) ). The minimum increase in its orbital velocity required, so that the satellite could escape from the earth's gravitational field, is close to : (Neglect the effect of atmosphere.)

359774 The orbital velocity of an artificial satellite in a circular orbit just above the earth's surface is \(v_{0}\). The orbital velocity of a satellite orbiting at an altitude of half of the radius, is

359770 The period of revolution of an earth's satellite close to surface of earth is \(90 \mathrm{~min}\). The time period of another satellite in an orbit at a distance of four times the radius of earth from its centre will be

359771 A small planet is revolving around a very massive star in a circular orbit of radius \(R\) with a period of revolution \(T\). If the gravitational force between the planet and the star were proportional to \(R^{-5 / 2}\), then \(T\) would be proportional

359772 Two satellites \(A\) and \(B\) revolve round the same planet in coplanar circular orbits lying in the same plane. Their periods of revolutions are \(1\;h\) and \(8\;h\), respectively. The radius of the orbit of \(A\) is \({10^4}\;km\). The speed of \(B\) is relative to \(A\), when they are closed in \(km{\rm{/}}h\) is

359773 A satellite is revolving in a circular orbit at a height ' \(h\) ' from the earth's surface (radius of earth \(R;h < < R\) ). The minimum increase in its orbital velocity required, so that the satellite could escape from the earth's gravitational field, is close to : (Neglect the effect of atmosphere.)

359774 The orbital velocity of an artificial satellite in a circular orbit just above the earth's surface is \(v_{0}\). The orbital velocity of a satellite orbiting at an altitude of half of the radius, is

359770 The period of revolution of an earth's satellite close to surface of earth is \(90 \mathrm{~min}\). The time period of another satellite in an orbit at a distance of four times the radius of earth from its centre will be

359771 A small planet is revolving around a very massive star in a circular orbit of radius \(R\) with a period of revolution \(T\). If the gravitational force between the planet and the star were proportional to \(R^{-5 / 2}\), then \(T\) would be proportional

359772 Two satellites \(A\) and \(B\) revolve round the same planet in coplanar circular orbits lying in the same plane. Their periods of revolutions are \(1\;h\) and \(8\;h\), respectively. The radius of the orbit of \(A\) is \({10^4}\;km\). The speed of \(B\) is relative to \(A\), when they are closed in \(km{\rm{/}}h\) is

359773 A satellite is revolving in a circular orbit at a height ' \(h\) ' from the earth's surface (radius of earth \(R;h < < R\) ). The minimum increase in its orbital velocity required, so that the satellite could escape from the earth's gravitational field, is close to : (Neglect the effect of atmosphere.)

359774 The orbital velocity of an artificial satellite in a circular orbit just above the earth's surface is \(v_{0}\). The orbital velocity of a satellite orbiting at an altitude of half of the radius, is