IGNOU MPH 4 2026 - If an operator is Hermitian and an operator is u

Question

If an operator $\hat{O}$ is Hermitian and an operator $\hat{U}$ is unitary, show that the operator $\hat{U}\hat{O}\hat{U}^{-1}$ is Hermitian.

19 Jan 2026

Answer :

Word Count : 125

Let (\hat O) be Hermitian and (\hat U) be unitary. By definition of a Hermitian operator, [ \hat O^\dagger=\hat O, ] and by definition of a unitary operator, [ \hat

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