Question

Tunnel effect can be explained on the basis of ____________

(a) Schrodinger’s Equation

(b) Particle in a Box

(c) Heisenberg’s uncertainty principle

(d) De-Broglie Wavelength

I had been asked this question in a job interview.

My question is taken from Tunnel Effect topic in chapter Quantum Physics of Engineering Physics I

Answer 1

The correct answer is (c) Heisenberg’s uncertainty principle

For explanation I would say: The tunnel effect can be understood in terms of the uncertainty principle. Using it, we can say that the particle must be able to enter the barrier, and once inside it, has the possibility of continuing on.