Vector →A has components A1,A2,A3 along the three axes If the co-ordinates system is roatated by 90∘ about z-axis then the new components along the axes are
A
A1,−A2,A3
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B
−A1,−A2,A3
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C
A2,−A1,A3
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D
−A2,−A1,A3
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Solution
The correct option is AA2,−A1,A3 Facing the z axis, there can be two possibilities. Either, clockwise rotation or anticlockwise rotation.