Physics Gurukul Topics to be covered: Electromagnetic induction; Faraday’s law, induced emf and current; Lenz’s Law, Eddy currents. Self and mutual inductance. Alternating currents, peak and rms value of alternating current/ voltage; reactance and impedance; LCR series circuit, resonance; Quality factor, power in AC circuits, wattless current. AC generator and transformer. Content: Introduction Magnetic Flux Faraday’s Law … Read more
In this lesson we will see how the current and emf are induced in a circuit when the magnetic flux through the circuit changes with time. In 1820, the connection between electricity and magnetism was demonstrated by Faraday and independently by Joseph Henry. They showed that an electric current could be induced in a circuit by a … Read more
Level will be at par with 2018 only ! If you have prepared well, then paper will be very easy for sure 🙂 Some tips for your preparation : (1) Practice from limited and standard books like SL Arora, HC VERMA, etc. Don’t do too many books. Do limited books, and do it more number of … Read more
Do you sometimes struggle with a lack of motivation? You’re supposed to be studying for next week’s test. But instead you end up texting your friends, watching YouTube videos, or playing games. Sound familiar? Developing long-term motivation is a complicated issue. But you can stay motivated in the short term by reading inspirational quotes. So I’ve compiled this … Read more
Physics Gurukul is the best place to learn in Gurgaon. A premier institute for medical & non-medical entrance exam preparation.
Short answer type questions: Exercise:
1. JEE MAINS PREVIOUS YEARS QUESTIONS JEE (MAIN)- 2018 : PHY CHEM MATHS (New) JEE (MAIN)- 2017 : PHY CHEM MATHS JEE (MAIN)- 2016 : PHY CHEM MATHS JEE (MAIN)- 2015 : PHY CHEM MATHS JEE (MAIN)- 2014 : PHY CHEM MATHS JEE (MAIN)- 2013 : PHY CHEM MATHS JEE (MAIN)- … Read more
CHEMISTRY In order to help students preparing for various Engineering and Medical Entrance Examination we are providing free STUDY MATERIALS on this blog. Do share with all your friends & relatives who are preparing for JEE & NEET. Enjoy your preparation. GOOD LUCK Physics Gurukul (Gurgaon) is a premier institute for medical and engineering exam … Read more
PHYSICS In order to help students preparing for various Engineering and Medical Entrance Examination we are providing free STUDY MATERIALS on this blog. Do share with all your friends & relatives who are preparing for JEE & NEET. Enjoy your preparation. GOOD LUCK Physics Gurukul (Gurgaon) is a premier institute for medical and engineering exam … Read more
Joint Entrance Examination (JEE) MAIN will be conducted by the NTA from 2019 onwards. This Examination was being conducted by the Central Board of Secondary Education (CBSE) till 2018. JEE Main 2019 – The National Testing Agency (NTA) will be conducting the Joint Entrance Examination Main (JEE Main) 2019 twice in a year according to the … Read more
In order to crack IIT JEE (Mains & Advanced), candidates require a strong preparation. The syllabus is vast and if they want to master all the topics candidates should start preparing at least when they are in 11th standard or at least two years in advance. Remember it is not only about preparation but candidates … Read more
Bohr developed a model for hydrogen atom and hydrogen like one–electron species (hydrogenic species). He applied quantum theory in considering the energy of an electron bound to the nucleus. Important postulates An atom consists of a dense nucleus situated at the centre with the electron revolving around it in circular orbits without emitting any energy. The force … Read more
When a black body is heated, it emits thermal radiations of different wavelengths or frequency. To explain these radiations, Max Planck put forward a theory known as Planck’s quantum theory. The main points of quantum theory are i) Substances radiate or absorb energy discontinuously in the form of small packets or bundles of energy. ii) … Read more
If the atom gains energy the electron passes from a lower energy level to a higher energy level, energy is absorbed that means a specific wave length is absorbed. Consequently, a dark line will appear in the spectrum. This dark line constitutes the absorption spectrum. If the atom loses energy, the electron passes from higher … Read more
A wave is a sort of disturbance which originates from some vibrating source and travels outward as a continuous sequence of alternating crests and troughs. Every wave has five important characteristics, namely, wavelength , frequency , velocity (c), wave number and amplitude (a). Ordinary light rays, X–rays, α–rays, etc. are called electromagnetic radiations because similar … Read more
We know the fundamental particles of the atom. Now let us see, how these particles are arranged in an atom to suggest a model of the atom. Thomson’s Model: J.J. Thomson, in 1904, proposed that there was an equal and opposite positive charge enveloping the electrons in a matrix. This model is called the plum … Read more
All the objects around you, this book, your pen or pencil and things of nature such as rocks, water and plant constitute the matter of the universe. Matter is any substance which occupies space and has mass. Dalton, in 1808, proposed that matter was made up of extremely small, indivisible particles called atoms. (In Greek … Read more
Topics to be covered: Atomic structure; Rutherford Model; Spectrum of hydrogen atom; Bohr model; de Broglie relations, Uncertainty principle, Quantum model; Electronic configuration of elements ( upto to atomic number 36); Aufbau principle, Pauli’s exclusion principle and Hund’s rule, shapes of s,p, and d orbitals. Content: Dalton’s Atomic Theory Atomic Models Some Important Characteristics of … Read more
Electrostatics (Problems and Solutions)
PROBLEMS (Only one option is correct):
DIMENSIONS Dimensions of a physical quantity are the power to which the fundamental quantities must be raised to represent the given physical quantity. For example, Thus, the dimensions of density are 1 in mass and –3 in length. The dimensions of all other fundamental quantities are zero. For convenience, the fundamental quantities are represented by … Read more
Topics to be covered Force and inertia, Newton’s first law of motion; Momentum, Newton’s second law of motion, Impulse; Newton’s third law of motion; Law of conservation of linear momentum and its applications; Equilibrium of concurrent forces; Static and kinetic friction, laws of friction, rolling friction, lubrication; Examples of variable mass situation. Dynamics of uniform circular motion; Centripetal force, … Read more
