The component of a vector r along X-axis will have maximum value if a) r is along positive Y-axis b) r is along positive X-axis c) r makes an angle of 45 degrees with the X-axis d) r is along negative Y-axis
The component of a vector r along X-axis will have maximum value if a) r is along positive Y-axis b) r is along positive X-axis c) r makes an angle of 45 degrees with the X-axis d) r is along negative Y-axis

Answer: The correct answer is b) r is along positive X-axis

Therefore, the component should have an angle of 0 degrees with respect to the axis specified here, and the component of the vector along the x-axis will have the largest value when r is along that direction.