Question

The walls of a particle in a box are supposed to be ____________

(a) Small but infinitely hard

(b) Infinitely large but soft

(c) Soft and Small

(d) Infinitely hard and infinitely large

The question was asked in an internship interview.

I would like to ask this question from Particle in a Box in chapter Quantum Physics of Engineering Physics I

Answer 1

The correct choice is (d) Infinitely hard and infinitely large

For explanation I would say: The simplest quantum-mechanical problem is that of a particle in a box with infinitely hard walls and are infinitely large.