Question

An electron under goes from initial position ri= −3 i+ 2 j+ 5 k to final position

ri = 9 i+ 2 j+ 8 k. The displacement covered by electron is:

a) ∆r = 6 i+ 4 j+ 13 k

b) ∆r = 12 i+ 2 j+ 3 k

c) ∆r = 6 i+ 0 j+ 13 k

d) ∆r = 9 i+ 2 j+ 8 k

e) ∆r = 12 i+ 0 j+ 3 k

Answer 1

the right answer of An electron under goes from initial position ri= −3 i+ 2 j+ 5 k to final position

ri = 9 i+ 2 j+ 8 k. The displacement covered by electron is:

a) ∆r = 6 i+ 4 j+ 13 k

b) ∆r = 12 i+ 2 j+ 3 k

c) ∆r = 6 i+ 0 j+ 13 k

d) ∆r = 9 i+ 2 j+ 8 k

e) ∆r = 12 i+ 0 j+ 3 k✅✅