Physics is one of the branches of Science and also the most fundamental scientific disciplines. Physics helps in understanding everyday activities such as answering questions like why the sky is blue, what makes us walk easily on roads, why is it important to have a moon, etc.

From the above-mentioned examples, it becomes clear that Physics concentrates in explaining the behaviour of the universe, force, and matter and their effects. Physics has helped in developing new technologies and in many inventions.

Physics as a subject is further divided into branches which include Modern Physics, Classical mechanics, Astrophysics, Nuclear Physics, Electromagnetism, and Optics. These branches are further divided into sub-topics and most of these topics are covered in school syllabus. 

Class 11 includes concepts like Units and measurements, Kinematics, Gravitation, Oscillation and Waves, Thermodynamics, Laws of Motion, Work, Power, Energy, and Particle movement. 

Class 12 includes concepts such as Magnetism, Electromagnetism, Optics, Current electricity, Electrostatics, Dual nature of radiation, and Electronic devices. 

We know that all these concepts have major questions that are covered in textbooks which are either descriptive or problematic. Here, at BYJU’S students will find questions that are descriptive as well as concept based. Questions explained here includes examples, properties, principles, types, and definitions.

Work-Energy Theorem is concerned with the change of Kinetic Energy of an object due to work done by the net force acting on an object. Law of...
Let the tension in the string going over pulley be T And the acceleration of mass m is a (upward direction) For left side mass, T−mg=ma Or...
Saha’s equation is a useful result of combining quantum mechanics and statistical mechanics to explain the spectral classification of...
The reason for repulsion may be either an electrostatic (in case of similar charges) or a magnetic (in case of similar pole_s) force. Two similar...
a) Difference Between Electric power and electrical energy. The work is done or energy supplied by the source in maintaining the flow of...
Let initial velocity u and acceleration is a. For the first part of motion traveled 84 m in 6 seconds. By equation, s = ut +i/2at∧2 The...
A net force is defined as the sum of all the forces acting on an object. The equation below is the sum of N forces acting on an object. According...
Earth is in motion but still, it is considered as Inertial Frame. While travelling on a bus, are you in motion or rest In relativity both? You...
Electric and magnetic forces are very slightly stronger in a vacuum than in air. An electromagnetic field contains energy, momentum, and so on,...
Resistivity is the property of the material and it will not change with changing the length of the wire. (i) Since resistivity depends on the...