HARD
11th West Bengal Board
IMPORTANT
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What is the gravitational field? Explain what is intensity.

Important Questions on Gravitation

HARD
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 11 - Gravitation>EXERCISE>Q 9
What is a gravitational field? Explain what is the potential at a point in a gravitational field. Find the intensity and potential at a distance r from a point mass m. Find the relation between intensity and potential. State the essential characteristics of the gravitational force or the field. How can we  calculate the force between two extended bodies?
HARD
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 11 - Gravitation>EXERCISE>Q 10
Find the gravitational potential V and intensity E at a point at a distance r from the centre of a uniform ring of radius a.
HARD
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 11 - Gravitation>EXERCISE>Q 10
Find the gravitational potential V and intensity E at a point at a distance r from the centre of a hollow sphere of radius R, where r varies from 0 to ∞.
HARD
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 11 - Gravitation>EXERCISE>Q 10
Find the gravitational potential V and intensity E at a point at a distance r from the centre of Show graphically the variations of V and E with r.
MEDIUM
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 11 - Gravitation>EXERCISE>Q 11
Explain why planets or satellites move round the sun or the earth. Explain why the sun or earth does not lose energy in revolving the planets or the satellites.
HARD
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 11 - Gravitation>EXERCISE>Q 13
Explain how we may get the values of the mass and mean density of the earth and the mass of the sun from laws of gravitation.
HARD
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 11 - Gravitation>EXERCISE>Q 14
What is velocity of escape? Derive its expression. Explain why the earth's atmosphere does not contain lighter gases like hydrogen and helium and moon has no atmosphere?
HARD
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 11 - Gravitation>EXERCISE>Q 15
Derive the relation between the valocity of escape and the orbital velocity of a satellite revolving very near to the earth's surface. Express velocity of escape in term's of mean density of the earth.