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.

Effective collisions are those that result in a chemical reaction. Effective collisions are those that result in product formation due to an...
Banking of roads is defined as the phenomenon in which the edges are raised for the curved roads above the inner edge to provide the necessary...
From the definitions, we know that And Consider the figure given below: From the figure, speed and velocity can be given as: And...
The average rate of reaction is an average rate, obtained by taking the change in concentration over a time period. For example: -0.3 M / 15...
Coefficient of friction is defined as the ratio of the force of friction acting between two objects and the force which is pushing them together....
It is usually seen that during rainy days we tend to slip because rainwater acts as a lubricant between our feet and ground. This lubrication...
Answer: If the tracks are covered with snow then there is a substantial reduction in frictional force between the track and the train wheels or...
Dimensionless quantity is also known as the quantity of dimension with one as a quantity which is not related to any physical dimension. It is a...
Dimensional analysis is one of the important concepts that help us to solve numerical problems Physics. It is important to keep all the units...
We have different units for the same physical quantity because these units were used in different parts of the world. Every country had its own...