NCERT Solutions for Class 11 Physics Chapter 8 Gravitation
NCERT Solutions for Class 11 Physics Chapter 8 Gravitation: Gravitation is one of the important chapters of Physics in CBSE Class 11. Students must thoroughly study the chapter to score good grades. Students will learn about Kepler’s law, the law of orbit, the gravitational constant, and more in this chapter. Also, these solutions are prepared by top experts following the CBSE guidelines.
Students must carefully practice NCERT Solutions for Class 11 Physics Chapter 8 to understand the correct method of solving questions. Embibe provides these solutions for free. Apart from the solutions, Embibe also offers 300+ practice questions on gravitation. These practice questions explain 45 concepts from the chapter. Students must also try mock tests to improve their performance. Read on to know more.
NCERT Solutions for Class 11 Physics Chapter 8: Important Topics
Students must have observed that all material objects tend to get attracted to the earth. If we throw something up in the sky, it comes down and falls on the ground. It was the Italian Physicist Galileo who discovered the phenomenon that all the bodies fall back on the earth with a constant acceleration. Students will get a brief description of the same and related concepts in this chapter.
The important topics in this chapter include Kepler’s Law and the Universal Law of Gravitation. Apart from these, escape velocity, gravitational potential energy, and satellites are also some important topics. Embibe covers all these topics in its NCERT Solutions for free. Furthermore, the 3D videos, Embibe Explainers, and NCERT Exemplars are also available for free at Embibe.
Now, let us look at the important topics explained by Embibe:
Universal Law of Gravitation
The Gravitational Constant
Acceleration Due to Gravity of the Earth
Acceleration Due to Gravity Below and Above the Surface of Earth
Gravitational Potential Energy
Energy of an Orbiting Satellite
Geostationary and Polar Satellites
NCERT Solutions for Class 11 Physics Chapter 8: Points to Remember
Some of the important points to remember from this chapter are as follows:
The gravitational constant experiment was first done by an English scientist Henry Cavendish. Its value is 6.67408 × 10-11 m3 kg-1 s-2.
Value of g on earth (at sea level) = 9.8m/s2.
Acceleration due to Gravity of the Earth: It is the acceleration that an object gains due to the gravitational force. Its unit is m/s2 and is represented by ‘g’.
Escape velocity of an object, ve= √2GM / R =√2gR = √8πp GR2 / 3. Escape velocity at earth is 11.2 km/s.
Binding energy of the satellite mass ‘m’ is given by: B.E = + GMm / 2r.
Gravitational field strength: E = F/M.
NCERT Solutions for Class 11 Physics: All Chapters
Students can download NCERT Solutions for Class 11 Physics from the following: