If the sum of two unit vectors is a unit vector, then magnitude of difference is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Let 
and 
are the two unit vectors, then the sum is
or 
Since it is given that 
is also a unit vector, therefore 
⇒ ⇒ 
\ \ 
Now the difference vector is 
or 
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