Q. The Hamiltonian for a quantum harmonic oscillator of mass ๐ in three dimensions is
where ๐ is the angular frequency. The expectation value of ๐2 in the first excited state of the oscillator in units of
(rounded off to one decimal place) is
Ans: 2.5
Sol:
![Determine the correctness (or otherwise) of the following Assertion [A] and the Reason [R]](https://www.gkseries.com/blog/wp-content/uploads/2023/10/Determine-the-correctness-or-otherwise-of-the-following-Assertion-A-and-the-Reason-R.jpg)
