Published by:
CGP EDU Academic Team
Published on: August 14, 2026
If a unit vector lies in yz –plane and makes angles of 
and 
with the positive y- axis and z- axis respectively, then its components along the co-ordinate axes will be
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Let unit vector be 
then 
…..(i)
Since given that 
,
by (i))
Similarly, 
Hence the components of unit vector are 
Trick : Since the vector lies in 
plane, so it will be either 
or 
But the vector 
makes angle 
with 
axis and that of 
with z-axis.
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