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.

Virtual images are always formed by a convex mirror. The distance from the mirror to the left is taken as negative and the distance from the...
When two waves meet in such a way that their crests line up together, then it's called constructive interference. The resulting wave has a higher...
The law of reflection states that when a ray of light reflects off a surface, the angle of incidence is equal to the angle of reflection. when...
Consider a point source placed at the focal point of a concave mirror. The initial vergence is then Vi = -1/f. The power of the surface is P =...
Consider conducting a solution, When an electric current is passed through the solution some chemical reaction takes place. The resulting effects...
The major effects of refraction of lights are: Bending of light. Change in wavelength of light. Splitting of light rays if it is polychromatic...
Several billion years ago when the planets and the Solar System were formed, scientists believe that Mars was very similar to the Earth, with a...
Deceleration takes place when a resultant force acts on an object in the direction opposite to the direction in which it is moving. A...
When light traveling in an optically dense medium hits a boundary at a steep angle (larger than the critical angle for the boundary), the light...
Magnification = height of the image/height of the object = distance of the image/distance of the object. The magnification produced by a plane...