Physics · Vector Calculus
If a is a constant vector and r is a position vector, then which of the following vector expressions is vanishing (equals zero)?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1None of the above
- 2∇ · (a × r)✓
- 3∇ × (a × r)
- 4∇ (a · r)
Correct answer
∇ · (a × r)
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