The component of a vector r→ along X-axis will have maximum value, if

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r is along positive Y-axis

r is along positive X-axis

r makes an angle of 450 with the X-axis

r is along negative Y-axis

answer is B.

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Detailed Solution

If the vector r⇀makes an angle θ with positive x-axis. Then magnitude of the component of r⇀ along x-axis is rcosθ .Now when θ = 00, cosθ becomes maximum. So option (2) is right.

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