ABC26PH0271 · Atomic Structure

Subject: Physical Chemistry · Chapter: Atomic Structure · Topic: Atomic Structure – General · Exam: GATE 2005-2021 · Marks: 2 · Difficulty: Easy

Which of the following pairs of operators commute?

(a)x and $\frac{\mathrm{d}}{\mathrm{dx}}$

(b)$\frac{\mathrm{d}}{\mathrm{dx}}$ and $\frac{\mathrm{d}^{2}}{\mathrm{dx}^{2}}+2 \frac{\mathrm{d}}{\mathrm{dx}}$

(c)$\mathrm{x}^{2} \frac{\mathrm{d}}{\mathrm{dx}}$ and $\frac{\mathrm{d}^{2}}{\mathrm{dx}^{2}}$

(d)$x^{2}$ and $\frac{d}{d x}$

Answer

SELF-PRACTICE — the source book printed no answer.

Nothing is invented here, so this question has no answer on record.

Explanation

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