Question

Explain tunneling effect. Explain in brief low
this is used
in scanning tunneling microscope​

Answer 1

Answer:

Tunneling is a quantum mechanical effect. A tunneling current occurs when electrons move through a barrier that they classically shouldn’t be able to move through.

Answer 2

Answer:

The idea of particles tunneling appeared almost simultaneously with quantum mechanics. In classical mechanics, to describe a system of material points at a certain moment of time, it is enough to set every point coordinates and momentum components. In quantum mechanics it is in principle impossible to determine simultaneously coordinates and momentum components of even single point according to the He-isenberg uncertainty principle. To describe the system completely, an associated complex function is introduced in quantum mechanics