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Question

Find the position of point P in a rectangular co-ordinate system of (1,0.5,2).


A
^i+2^j+0.5^k
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B
0.5^i+2^j+^k
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C
^i+0.5^j+2^k
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D
2^i+0.5^j+^k
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Solution

The correct option is C ^i+0.5^j+2^k
If a point has coordinate (x,y,z) then its position vector is written as
r=x^i+y^j+z^k
Here, the given co-ordinate is (1,0.5,2), thus the position vector is
r=^i+0.5^j+2^k

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