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Mass energy relation - The total energy of a body is the sum of its kinetic energy and rest mass energy. Particle having rest mass zero always move with the velocity of light.
Q. The kinetic energy of an electron 120 eV. Compute the de Broglie wavelength of electron. λ = h / √2mE λ = 6.626 X 10 -34 / √ 2 X 9.1 X 10 -31 X 120 X 1.6 X 10 -19
You are given 3 lenses l1,l2,l3 each of focal length 20 an object at 40cm in front of l1.the final real image is formed at focus i ofl3,find separation between l1,l2,l3 ? Ans) bet
The semiconductor material is refined through a process is known as zone refining. It is used for the production of high purity crystals; silicon for example has a melting temperat
Magnitude of K.E. in an orbit is equal to: (1)Half of the potential energy (2)Twice of the potential energy (3)One fourth of the potential energy (4 ) None
50 gm of an optically active substance is dissolved in 100 ml of water. A plane polarised light, when passing through 30 cm of the solution, suffers a rotation of 390 in it's plane
derive an expression for density of states and hence deduce an expression for carrier concentration of metals
The potential difference across the terminals of a cell when it is not supplying any current is known as it's emf.
motion mean laws of motion explain explian motion lesson
Write an expression for the force experienced by a charged particle moving in a uniform magnetic field B. With the help of a diagram, define the principle and working of a, cyclotr
How fast would the train be travelling when it in Lac-Mégantic derailed. There were 5 locomotives and 72 cars filled with 113,000 litres of crude oil. The elevation was 520 m Cote
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