Question

The unit vectors along the three co-ordinate axes are related
as
(a) î>j >k>1
(c) i=-j=k=1
th) i=j=k=0
(d) i =j=k=1
The von
(a) des
6.
The angle​

Answer 1

Answer:

option D

Explanation:

UNIT vector mean magnitude should be 1 and I,j and k are the unit vector along x,y and z axis respectively

Answer 2

All the three units have the magnitude as unity  i=j=k=1

Given:

The unit vectors along three coordinate axes

To Find:

To get the value of coordinate axes which is related

Solution:

Since,

x-axis is along i direction

y axis is along j direction

z- axis is along k direction

i × j = k

i × j = k

j×k = i

k×i = j

Upon reversing the above ,

we have,

j×i = -k

k×j = -i

i×k = -j

From the above we get,

i=j=k=1 which shows the magnitude as unity.

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