Students can go through AP Inter 1st Year Physics Notes 1st Lesson Physical World will help students in revising the entire concepts quickly.
AP Inter 1st Year Physics Notes 1st Lesson Physical World
→ Physics deals with the study of the basic laws of nature and their manifestation in difference phenomena.
→ Basic forces in nature are
- Gravitational force
- Electromagnetic force
- Strong nuclear force
- Weak nuclear force.
→ The Raman effect deals with scattering of light by molecules of a medium, when they are excited to vibrational energy levels.
→ Conservation of energy, momentum, angular momentum, charge, etc are considered to be fundamental laws in Physics.
→ A conservation law is a hypothesis, based on observations and experiments.
→ According to Einstein’s theory, mass m is equivalent to energy E given by the relation E = mc2, where c is speed of light in vacuum.
→ Optical fibres works on the principle of total internal reflection.
→ Rocket propulsion works on the principle of Newton’s laws of motion.
→ Aeroplane works on the principle of Bernoullis principle.
→ Electron microscope works on the principle of work nature of electrons.