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If a vector $2 \hat{i} + 3 \hat{j} + 8 \hat{k}$ is perpendicular to the vector $4 \hat{j} - 4 \hat{i} + α \hat{k}$ , then the value of $α$ . is

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Correct option is C

Dot product of these two vectors should be equal to zero as they are perpendicular to each other.∴ A·B=-8+12+8α=08α=-4⇒α=-12

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If a vector 2i^+3j^+8k^ is perpendicular to the vector 4j^-4i^+αk^, then the value of α. is

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If a vector $2 \hat{i} + 3 \hat{j} + 8 \hat{k}$ is perpendicular to the vector $4 \hat{j} - 4 \hat{i} + α \hat{k}$ , then the value of $α$ . is