JEE Physics Masterclass Complete Free Video Lectures & Concepts for JEE Main & Advanced Target JEE Main & Advanced Module 1: Mechanics 01. Mathematical Tools & Vectors Calculus basics, dot/cross products, and unit systems. Play 02. Kinematics 1D, 2D motion, Projectiles, and Relative Velocity maps. Play 03. Laws of Motion & Friction Newtonian frameworks, constraints, …
1. Visible light has wavelengths in the range of \(400 \,\text{nm}\) to \(780 \,\text{nm}\). Calculate the range of energy of the photons of visible light. Solution: The energy (\(E\)) of a photon is calculated using the formula: $$E = \frac{hc}{\lambda}$$ Given constants: Planck constant (\(h\)): \(6.63 \times 10^{-34} \,\text{J s}\) Speed of light (\(c\)): \(3 …
Photoelectric Effect & Wave Particle Duality | H C Verma | Solution Read More »
1. Can the centre of mass of a body be at a point outside the body? Answer: Yes Explanation: The centre of mass (COM) is the point where the entire mass of a body can be considered to be concentrated for the purpose of analyzing motion. It depends on the distribution of mass and not …
1. The dimension of \(\dfrac{B^2}{2\mu_0}\), where \(B\) is the magnetic field and \(\mu_0\) is the magnetic permeability of vacuum, is: 1. \([ML^{-1}T^{-2}]\) 2. \([ML^2T^{-1}]\) 3. \([MLT^{-2}]\) 4. \([ML^2T^{-2}]\) Solution: The quantity \(\dfrac{B^2}{2\mu_0}\) represents magnetic energy stored per unit volume (Energy Density). Energy Density \(=\dfrac{\text{Energy}}{\text{Volume}}\) \[ \left[\frac{B^2}{\mu_0}\right] = \frac{ML^2T^{-2}}{L^3} = \boxed{ML^{-1}T^{-2}} \] Answer: 1. \([ML^{-1}T^{-2}]\) 2. …
1. Young’s modulus of elasticity \( Y \) is expressed in terms of three derived quantities, namely, the gravitational constant \( G \), Planck’s constant \( h \) and the speed of light \( c \), as \( Y = c^\alpha h^\beta G^\gamma \). Which of the following is the correct option? [JEE (Advanced) 2023] …
QUESTIONS FOR SHORT ANSWER 1. When you lift a box from the floor and put it on an almirah the potential energy of the box increases, but there is no change in its kinetic energy. Is it a violation of conservation of energy? Solution: No, this is not a violation of the conservation of energy. …
Concept of Physics | H C Verma | Chapter 8 : Work and Energy | Solution Read More »
1. You are driving a motorcycle on a horizontal road. It is moving with a uniform velocity. Is it possible to accelerate the motorcycle without putting higher petrol input rate into the engine? Solution: Yes, it is possible to accelerate the motorcycle without increasing the petrol input rate. Velocity is a vector quantity, having both …
Concept of Physics | H C Verma | Chapter 7 : Circular Motion | Solution Read More »
QUESTIONS FOR SHORT ANSWER 1 A For most of the surfaces used in daily life, the friction coefficient is less than 1. Is it always necessary that the friction coefficient is less than 1? Answer: No Explanation: It is not always necessary for the friction coefficient to be less than 1. While many common surfaces …
HC Verma Physics Solutions Part I: Chapter 6 | Friction Read More »