NEET PHYSICS- A BLOG FOR BETTER PRACTICE

  PHYSICAL WORLD AND MEASUREMENT Brief summary: 1. Physics deals with the study of the essential laws of nature and their manifestation in different phenomena.  The basic laws of physics are universal and apply in widely different contexts  and conditions. 2. The scope of physics is wide, covering a tremendous range of magnitude of physical quantities . 3. Physics and technology are related to each other. Sometimes technology gives rise to new physics; at other times physics generates new technology.  Both have direct impact   on society 4. There are four fundamental forces in nature that govern the various phenomena of the macroscopic and the microscopic world. These are the ‘gravitational force’, the ‘electromagnetic force’, the ‘strong nuclear force’, and therefore the ‘weak nuclear force’. Unification of different forces/domains in nature is a basic quest in physics. 5. The physical quantities that remain unchanged during a process are called conserve...