Questions 81–83 of 83. Imported answers require independent review unless marked reviewed.

Topic practice 83 questionsPage 9 of 9

Question 35

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Consider a one-dimensional potential well of width

. Using the uncertainty principle

, an estimate of the minimum depth of the well such that it has at least one bound state for an electron is

:
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Question 47

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Which one of the following operators is Hermitian?
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Question 55

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Positronium is an atom made of an electron and a positron. Given the Bohr radius for the ground state of the Hydrogen atom to be 0.53 Angstroms, the Bohr radius for the ground state of positronium is ________ Angstroms. (up to two decimal places).

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