A point P is lying at a distance r(< a) from the centre of shell of radius a. If g and V be the gravitational field and potential at the point P then :

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1. The binding energy of a satellite of mass m in a orbit of radius r is (R = radius of earth, g = acceleration due to gravity)

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2. Assertion : Planet is a heavenly body revolving round the sun.
Reason : Star is luminous body made of gaseous material.

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3. If , and represent the work done in moving a particle from to along three different paths , and (as shown in fig) in the gravitational field of the point mass . Find the correct relation between , and

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4. A projectile is fired from the surface of the Earth of radius with a velocity , where is the escape velocity and . Neglecting the air resistance, the orbital velocity of the projectile is

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5. The effect of rotation of the Earth on the value of acceleration due to gravity is

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1. If and respectively denote energy and gravitational constant, then has the dimensions of:

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2. The de Broglie wavelength of an electron moving with kinetic energy of is nearly

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3. A car starts from rest and accelerates at At , a ball is dropped out of a window by a person sitting in the car. What is the velocity and acceleration of the ball at ? (Take

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4. A wheel with metallic spokes each long is rotated with a speed of in a plane perpendicular to a magnetic field of . The induced emf between the axle and rim of the wheel will be,

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Q. A point is lying at a distance from the centre of shell of radius . If and be the gravitational field and potential at the point then :

The field inside the shell is zero and so potential inside the shell is constant and equal to the value that exists at the surface i.e. .

Questions from Gravitation

1. The binding energy of a satellite of mass m in a orbit of radius r is (R = radius of earth, g = acceleration due to gravity)

2. Assertion : Planet is a heavenly body revolving round the sun.
Reason : Star is luminous body made of gaseous material.

3. If , and represent the work done in moving a particle from to along three different paths , and (as shown in fig) in the gravitational field of the point mass . Find the correct relation between , and

4. A projectile is fired from the surface of the Earth of radius with a velocity , where is the escape velocity and . Neglecting the air resistance, the orbital velocity of the projectile is

5. The effect of rotation of the Earth on the value of acceleration due to gravity is

Physics Most Viewed Questions

1. If and respectively denote energy and gravitational constant, then has the dimensions of:

2. The de Broglie wavelength of an electron moving with kinetic energy of is nearly

3. A car starts from rest and accelerates at At , a ball is dropped out of a window by a person sitting in the car. What is the velocity and acceleration of the ball at ? (Take

4. A wheel with metallic spokes each long is rotated with a speed of in a plane perpendicular to a magnetic field of . The induced emf between the axle and rim of the wheel will be,

5. A barometer is constructed using a liquid (density What would be the height of the liquid column, when a mercury barometer reads ?
(density of mercury

Latest Updates

Q. A point is lying at a distance from the centre of shell of radius . If and be the gravitational field and potential at the point then :

The field inside the shell is zero and so potential inside the shell is constant and equal to the value that exists at the surface i.e. .

Questions from Gravitation

1. The binding energy of a satellite of mass m in a orbit of radius r is (R = radius of earth, g = acceleration due to gravity)

2. Assertion : Planet is a heavenly body revolving round the sun. Reason : Star is luminous body made of gaseous material.

3. If , and represent the work done in moving a particle from to along three different paths , and (as shown in fig) in the gravitational field of the point mass . Find the correct relation between , and

4. A projectile is fired from the surface of the Earth of radius with a velocity , where is the escape velocity and . Neglecting the air resistance, the orbital velocity of the projectile is

5. The effect of rotation of the Earth on the value of acceleration due to gravity is

Physics Most Viewed Questions

1. If and respectively denote energy and gravitational constant, then has the dimensions of:

2. The de Broglie wavelength of an electron moving with kinetic energy of is nearly

3. A car starts from rest and accelerates at At , a ball is dropped out of a window by a person sitting in the car. What is the velocity and acceleration of the ball at ? (Take

4. A wheel with metallic spokes each long is rotated with a speed of in a plane perpendicular to a magnetic field of . The induced emf between the axle and rim of the wheel will be,

5. A barometer is constructed using a liquid (density What would be the height of the liquid column, when a mercury barometer reads ? (density of mercury

Latest Updates

2. Assertion : Planet is a heavenly body revolving round the sun.
Reason : Star is luminous body made of gaseous material.

5. A barometer is constructed using a liquid (density What would be the height of the liquid column, when a mercury barometer reads ?
(density of mercury