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.

The time period is the time taken by a complete cycle of the wave to pass a point, Frequency is the number of complete cycle of waves passing a...
Levers are the most basic machines which are used to do some work with minimal effort. A lever amplifies an input force to provide a greater...
Displacement is the direct length between any two points when measured along the minimum path between them. Displacement is a vector quantity as...
Frequency is the revolutions per second or number of wave cycles. The Frequency is expressed in Hertz (Hz). If one considers any wave in terms...
Dimensional analysis is the practice of checking relations between physical quantities by identifying the dimensions of the physical quantities....
Electric Charge is a fundamental property of matter and never found free. There are two kinds of electric charges namely positive and negative...
Scalar Scalar quantity is defined as the physical quantity with magnitude and no direction. Some physical quantities can be described just by...
Acceleration is defined as the rate of change of velocity with respect to time. A body’s acceleration is the final result of all the forces...
The acceleration from Newton's second law is equal to the final velocity divided by the time and the average velocity is half the final velocity,...
The image size is smaller than the object size, the objects in the mirror appear to be farther than they actually are. This can cause the viewer...

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