Question

Q61 When the scattering power of the potential barrier is zero, then the electron is
IS
Ops. A lost due to recombination
B
O completely free
CO completely bound
D. O partly bound and partly free​

Answer 1

Answer:

In quantum mechanics, the rectangular (or, at times, square) potential barrier is a standard one-dimensional problem that demonstrates the phenomena of wave-mechanical tunneling (also called "quantum tunneling") and wave-mechanical reflection. The problem consists of solving the one-dimensional time-independent Schrödinger equation for a particle encountering a rectangular potential energy barrier. It is usually assumed, as here, that a free particle impinges on the barrier from the left.

Square potential.png

Although classically a particle behaving as a point mass would be reflected, a particle actually behaving as a matter wave has a non-zero probability of penetrating the barrier and continuing its travel as a wave on the other side. In classical wave-physics, this effect is known as evanescent wave coupling. The likelihood that the particle will pass through the barrier is given by the transmission coefficient, whereas the likelihood that it is reflected is given by the reflection coefficient. Schrödinger's wave-equation allows these coefficients to be calculated.

Explanation:

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Answer 2

Answer:

partly bound and partly free​

Explanation:

The rectangle (or, occasionally, square) potential barrier is a typical one-dimensional quantum mechanical issue that illustrates the wave-mechanical tunnelling and wave-mechanical reflection processes. The challenge is to solve the Schrödinger equation in one dimension for a particle encountering a rectangular potential energy barrier. Typically, it is assumed—as is the case in this instance—that a free particle strikes the barrier from the left.

A particle acting as a matter wave has a non-zero probability of passing through the barrier and continuing its journey as a wave on the other side, even though a particle acting as a point mass would often be reflected. This phenomenon is referred to as evanescent wave coupling in classical wave physics. The possibility of the particle passing through the barrier is given by the transmission coefficient, whereas the likelihood that it is reflected is given by the reflection coefficient. Schrödinger's wave-equation allows these coefficients to be calculated.

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