An electron (mass 𝑚) with initial velocity Solution:Momentum of an electron, 𝑝 = 𝑚𝑣 = ℎ/𝜆Initially 𝑚(√2𝑣0) = ℎ/𝜆0 Velocity as a function of... View Article
A simple pendulum is being used to determine the value of gravitational acceleration at a certain place. The length of the pendulum is 25.0... View Article
An object is gradually moving away from the focal point of a concave mirror along the axis of the mirror. The graphical representation of the... View Article
A ball is dropped from the top of a 100 high tower on a planet. In the last 1/2 before hitting the ground, it covers a distance of 19 .... View Article
As shown in figure, a battery of emf is connected to an inductor and resistance in series. The switch is closed at = 0. The total charge... View Article
A capacitor is made of two square plates each of side ‘ ’ making a very small angle between them, as shown in figure. The capacitance will be... View Article
A uniform sphere of mass 500 rolls without slipping on a plane horizontal surface with its centre moving at a speed of 5 cm/s. Its kinetic... View Article
A galvanometer having a coil resistance 100 Ω gives a full scale deflection when a current of 1 mA is passed through it. What is the value of the... View Article
A particle of mass and charge is released from rest in uniform electric field. If there is no other force on the particle, the dependence of... View Article
As shown in figure, when a spherical cavity (centered at O) of radius 1 m is cut out of a uniform sphere of radius (centered at C ), the center... View Article
Two liquids of density 1 and 2 ( 2 = 2 1) are filled up behind a square wall of side 10 as shown in figure. Each liquid has a height of 5 .... View Article
A particle of mass is dropped from a height ℎ above the ground. At the same time another particle of the same mass is thrown vertically upwards... View Article
Consider two charged metallic spheres 1 and 2 of radii 1 and 2, respectively. The electric fields 1(on 1) and 2(on 2) on their surfaces... View Article
A very long wire ABDMNDC is shown in figure carrying current . AB and BC parts are straight, long and at right angle. At D wire forms a circular... View Article