CERTIFICATION EXAMINATION TEST 2026 FULL
QUESTIONS AND CORRECT ANSWERS
GRADED A+
◉ Can we measure the position of an electron and its velocity
simultaneously ? Answer:
◉ Bohr Correspondence Principle. Answer: A principle that states that
the predictions of
quantum mechanics must match the predictions of classical physics in
the physical situations that
classical physics is intended to describe, and does describe very
accurately. Mathematically, this means that the equations of quantum
mechanics must smoothly turn into the equations of classical mechanics
as the de Broglie wavelength of particles becomes very small, and the
energy state quantum number gets very large.
◉ How many values can the quantum spin number of an electron take ?
Answer:
◉ Pauli Exclusion Principle. Answer: An atomic orbital may describe at
most two electrons, each with opposite spin direction