Question

12. The position vector of a particle in three dimension given by r= a; i+ay j + a, k. The magnitude of the
position vector is given by
(a) (az? + a,? + a,^1/2 (b) (0,2-2,2- a,})^1/2 (c)(a + a, + a) 1/2 (d) (a, +2, +a)
15 h. tell me pls assertion and reason​

Answer 1

Explanation:

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Answer 2

Answer

if it helps the magnitude of vector is given by

|x|=(a^2+b^2+c^2)^0.5

where

x=a i; b j; c k