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The masses and radii of earth and moon are M1, R1 and M2, R2 respectively. Their centres are at a distance d apart. The minimum speed with which a particle of mass m should be projected from a point midway between the two centres so as to escape to infinity is:
13
Sep
The masses and radii of earth and moon are M1, R1 and M2, R2 respectively. Their centres are at a distance d apart. The minimum speed with which a particle of mass m should be projected from a point midway between the two centres so as to escape to infinity is: If the radius of [...]
A hydrogen atom in its ground state absorbs 10.2 eV of energy. The oribital angular momentum is increased by
13
Sep
A hydrogen atom in its ground state absorbs 10.2 eV of energy. The oribital angular momentum is increased by hydrogen atom in its ground state absorbs 10.2 eV of energy. The oribital angular momentum is increased by September 13, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Imagine a light planet revolving around a very massive star in a circular orbit of radius r with a period of revolution T. If the gravitational force of attraction between the planet and the star is proportional to r5/2, then the square of the time period will be proportional to.
13
Sep
Imagine a light planet revolving around a very massive star in a circular orbit of radius r with a period of revolution T. If the gravitational force of attraction between the planet and the star is proportional to r5/2, then the square of the time period will be proportional to. If the radius of the [...]
The ratio between total acceleration of the electron in singly ionized helium atom and hydrogen atom ( both in ground state ) is
13
Sep
The ratio between total acceleration of the electron in singly ionized helium atom and hydrogen atom ( both in ground state ) is The ratio between total acceleration of the electron in singly ionized helium atom and hydrogen atom ( both in ground state ) is September 13, 2020 Category: Uncategorised (JEE Advanced Physics by [...]
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
13
Sep
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 [...]
What is the angular momentum of an electron in Bohr’s hydrogen atom whose energy is -0.544 eV?
13
Sep
What is the angular momentum of an electron in Bohr’s hydrogen atom whose energy is -0.544 eV? What is the angular momentum of an electron in Bohr's hydrogen atom whose energy is -0.544 eV? September 13, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Two bodies with masses M1 and M2 are initially at the rest and a distance R apart. Then they move directly towards one another under the influence of their mutual gravitational attraction. What is the ratio of the distances traveled by M1 to the distance traveled by M2?
13
Sep
Two bodies with masses M1 and M2 are initially at the rest and a distance R apart. Then they move directly towards one another under the influence of their mutual gravitational attraction. What is the ratio of the distances traveled by M1 to the distance traveled by M2? If the radius of the earth decreases [...]
The distance between the centres of the Moon and the earth is D. The mass of the earth is 81 times the mass of the Moon. At what distance from the centre of the earth, the gravitational force will be zero?
13
Sep
The distance between the centres of the Moon and the earth is D. The mass of the earth is 81 times the mass of the Moon. At what distance from the centre of the earth, the gravitational force will be zero? The distance between the centres of the Moon and the earth is D. The [...]
If a man at the equator would weigh (3/5)th of his weight, the angular speed of the earth is
13
Sep
If a man at the equator would weigh (3/5)th of his weight, the angular speed of the earth is If a man at the equator would weigh (3/5)th of his weight the angular speed of the earth is September 13, 2020 Category: Cengage JEE Mains Physics by B.M Sharma , Chapter 10 - Gravitation ,
The distances from the centre of the earth, where the weight of a body is zero and one-fourth that of the weight of the body on the surface of the earth are(assume R is the radius of the earth).
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Sep
The distances from the centre of the earth, where the weight of a body is zero and one-fourth that of the weight of the body on the surface of the earth are(assume R is the radius of the earth). The distances from the centre of the earth where the weight of a body is zero [...]