Expert Math Class 12 Level 7

Which right-hand unit vector is perpendicular to both i and j?

i और j दोनों पर perpendicular right-hand unit vector कौन सा है?

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Correct Answer

C. k

Explanation

Step 1: Identify cross product of unit vectors. Step 2: i×j=k, so the right-hand perpendicular unit vector is k. Step 3: Memory tip: The cyclic order i, j, k is positive.

Step 1: अवधारणा unit vectors cross product है। Step 2: i×j=k होता है, इसलिए right-hand direction में perpendicular unit vector k है। Step 3: Memory tip: cyclic order i, j, k positive होता है।

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