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Consider a vector `vecF=4hati-3hatj`. Another vector that is perpendicular to `vecF` is

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Consider a vector `vecF=4hati-3hatj`. Another vector that is perpendicular to `vecF` is
A. `4hati+3hatj`
B. `6hati`
C. `7hatk`
D. `3hati -4hatj`
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Correct Answer - C
(c ) Lies inXy -plane .Hence `7hatk` which is perpendicular to X Y -plane perpendicular to F.
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