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 correct answer is (A) 0 K. The conductivity of semiconductors increases with an increase in temperature and vice-versa. Therefore, the...
Sol: Given: Time, t = 4 min = 240s Distance, D = 1.6km = 1.6 * 103m The average speed, v = Therefore, the average speed required to...
Sol: The volume of rubber, V = AL The negative sign decreases as length increases. Area, A = Hence Therefore, Explore more...
Sol: Given: Wavelength of the monochromatic light, λ = 632.8 nm = 632.8 × 10−9 m Power emitted by the laser, P = 9.42 mW =...
The correct answer is (B) Ampere. Explore more such questions and answers at BYJU’S....
The correct answer is (B) Both monocot and dicot roots. In the vascular bundles, xylem and phloem are present on different radii called radial...
The correct answer is (C) Gallium Arsenide. Gallium arsenide is an example of a direct bandgap semiconductor. Explore more such questions and...
(I) A charged balloon repels another charged balloon as both have like charges and like charges repel each other. (II) Whereas an uncharged...
The correct answer is (D) Mutual Induction. Explore more such questions and answers at BYJU’S....
The given statement is true. The negative slope of the position-time graph represents that the body is moving towards the negative direction....
The two advantages of eddy current in practical applications are: Sensitivity to surface defects: Able to detect defects of 0.5mm in length...
The correct answer is (C) Magnetic Force. The force which a magnet exerts on iron and steel is called the magnetic field. The magnetic force is...
The above-given statement refers to a one cubic centimetre volume of brass, which has a mass of 8.4 g. Explore more such questions and answers...
Answer: Opaque materials Translucent materials Transparent materials Those substances through which objects cannot be seen are termed...
Answer: (d) Steel and plastic Steel can be moulded to get sharp points and plastic is used to seal the edges. Hence steel and plastic are used...

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