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The vector $\vec{a} = 2 \hat{i}$ rotates anticlockwise in xy-plane through an angle of $90^{o}$ . Then change produced in the vector is ----

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12(i^−j)^a

2(j^−i)^

2(j^+i)^

2(j^−i)^

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detailed solution

Correct option is D

a→=2i^,b→=2j^Δa→=b→−a→=2(j^−i^)

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The vector a→=2i^ rotates anticlockwise in xy-plane through an angle of 90o. Then change produced in the vector is ----

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Ready to Test Your Skills?

free study material

The vector $\vec{a} = 2 \hat{i}$ rotates anticlockwise in xy-plane through an angle of $90^{o}$ . Then change produced in the vector is ----