Class 11 Physical World Notes

Class 11 Physical World Notes. Click Here for Physical World Class 11 PDF What is Physics? An important component of the.

What Are The Fundamental Forces of Nature?What Are The Laws of Conservation in Nature?Important QuestionsIn this diverse world the fundamental forces which govern the phenomena occurring in it are 1 Gravitational Force – it is a universal force that exists which is of mutual attraction between any two objects by virtue of their masses 2 Electromagnetic Force – is the force between charged particles If charges are in a state of rest it is given by Coulumb’s law whereas when they are in motion they generate a magnetic field hence the name electromagnetic forces as they are inseparable They also act over a large distance as seen in the case of gravitational forces without the intervention of any medium 3 Strong Nuclear Force – in a nucleus it binds protons and neutrons It is the strongest of all the fundamental forces and is chargeindependent acting between protonproton protonneutron or neutronneutron 4 Weak Nuclear Force – observed only in some nuclear processes Example – βdecay of a nucleus It is not as weak as the gravitational force but weaker than electromagneti The conservation laws in physics are very important when it comes to understanding the subject The laws are 1 Laws of Conservation of Mass 2 Laws of Conservation of Energy 3 Laws of Conservation of Momentum 4 Laws of Conservation of Charge etc Indepth reading 1 Law of Conservation of Energy 2 Law of Conservation of Momentum Derivation What do you think did Einstein mean when he said “The most incomprehensible thing about the world is that it is comprehensible”?“Every great physical theory starts as a heresy and ends as a dogma” Give some examples from the history of the science of the validity of this incisive remark“Politics is the art of the possible” Similarly “Science is the art of the soluble” Explain this aphorism on the nature and practice of science Video Duration 3 min.

Physical World Class 11 Notes: NCERT Solutions, PDF

Physical World Class 11 Notes Physics Chapter 1 Science Science is a systematic and organised attempt to acquire knowledge about the surroundings through observations Scientific Method Several interrelated steps are involved in scientific method Some of the most significant steps are The.

Class 11 Physics Revision Notes for Chapter 1 Physical World

Access class 11 physics Chapter 1 Physical World Notes Science and its origin Science can be defined as a systematic understanding of natural phenomena in a very detailed Natural Sciences Natural science can be considered as a branch of science which is discussing about the description.