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Consider a particle of energy E is incident from the left on a rectangular potential barrier of height and width and on both sides of this barrier at which means that no force act upon the particle in this regions. Thus, the potential function is defined as if a particle having energy E less than then classically the particle will always be reflected completely and hence will not penetrate the barrier. But according to wave mechanics the particles has some probability of penetrating this barrier and appear in region III.
This is called quantum mechanical tunneling or tunnel effect. According to this, if a particle is moving towards the barrier with energy less than the height of potential barrier, then it is not necessary to reflect completely by the barrier but there is always a probability of particle to cross the barrier and continue its forward motion.
What do you mean by Doppler effect? Derive a mathematical expression for the apparent frequency of a note, when source of sound and observer are approaching each other.
how much force is necessary to stop the car when steps on a brake a 1000-kg car travelling at 65 km/h if the braking distance is 35 m?
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Define the Ray Diagrams for Lenses When drawing ray diagrams for thin lenses, we can assume that the lens is infinitely thin. Instead of considering refractions at each surface o
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Are optical ports compatible? In general no there are optical ports are not compatible. Illuminator manufacturers use an exacting type of optical port to effect the connection
Why can''t I fly
(1) In Boolean algebra only two types of state variables (0 and 1) are permitted. (2) The variables (A, B, C ....) of Boolean algebra are subjected to three operations.
is always del U o in cyclic process
The power of change of angular displacement with respect to time is known as angular velocity.
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