NCERT Solutions for Class 11 Physics Chapter 8 - GravitationShare
NCERT Solutions for Class 11 Physics Chapter 8 – Gravitation from Goprep are vital for Physics exam preparation. These Solutions for Chapter 8 provide students the opportunity to get access to easy and well-researched answers to the questions given in the textbook. Also, by relying on these NCERT Solutions for your Physics exam preparation, you can clear your doubts of difficult chapters and clear your concepts.
The Chapter Gravitation is an important part of the Physics syllabus from the exam point of view. The phenomenon studies in this Chapter will be discussed in the future. So, by reading our NCERT Solutions and practicing difficult questions, you can enhance the level of your Physics exam preparation and score better thereafter.
Here are the topics discussed in NCERT Solutions for Physics Class 11 – Gravitation
- Kepler’s laws
- The universal law of gravitation
- The gravitational constant
- Acceleration due to the gravity of the earth
- Acceleration due to gravity below and above the surface of the earth
- Gravitational potential energy
- Escape speed
- Earth satellites
- The energy of an orbiting satellite
- Geostationary and polar satellites
NCERT Solutions for Class 11 Physics Chapter 8 - Gravitation
Answer the following:
A. You can shield a charge from electrical forces by putting it inside a hollow conductor.
Can you shield a body from the gravitational influence of nearby matter by putting it inside a hollow sphere or by some other means?
B. An astronaut inside a small space ship orbiting around the earth cannot detect gravity. If the space station orbiting around the earth has a large size, can he hope to detect gravity?
C. If you compare the gravitational force on the earth due to the sun to that due to the moon, you would find that the Sun’s pull is greater than the moon’s pull. (you can check this yourself using the data available in the succeeding exercises).
However, the tidal effect of the moon’s pull is greater than the tidal effect of sun. Why?
Choose the correct alternative:
A. Acceleration due to gravity increases/decreases with increasing altitude.
B. Acceleration due to gravity increases/decreases with increasing depth (assume the earth to be a sphere of uniform density).
C. Acceleration due to gravity is independent of mass of the earth/mass of the body.
D. The formula –G Mm(1/r2 – 1/r1) is more/less accurate than the formula mg(r2 – r1) for the difference of potential energy between two points r2 and r1 distance away from the centre of the earth.
Choose the correct alternative:
A. If the zero of potential energy is at infinity, the total energy of an orbiting satellite is negative of its kinetic/potential energy.
B. The energy required to launch an orbiting satellite out of earth’s gravitational influence is more/less than the energy required to project a stationary object at the same height (as the satellite) out of earth’s influence.
|Chapter 1 - Physical World|
|Chapter 2 - Units and Measurements|
|Chapter 3 - Motion in a Straight Line|
|Chapter 4 - Motion in a Plane|
|Chapter 5 - Laws of Motion|
|Chapter 6 - Work, Energy and Power|
|Chapter 7 - System of Particles and Rotational Motion|
|Chapter 8 - Gravitation|