Home
Class 12
PHYSICS
If |vecA + vecB| = |vecA - vecB|, then t...

If `|vecA + vecB| = |vecA - vecB|`, then the angle between `vecA and vecB` will be

Text Solution

Verified by Experts

`|vecA+vecB|=|vecA-vecB|impliessqrt(A^(2)+B^(2)+2ABcostheta)=sqrt(A^(2)+B^(2)-2ABcostheta)`
`impliesA^(2)+B^(2)+2ABcostheta=A^(2)+B^(2)-2ABcostheta`
`implies costheta=0,theta=90^(@)`
Promotional Banner

Similar Questions

Explore conceptually related problems

If |vecA xx vecB| = |vecA*vecB| , then the angle between vecA and vecB will be :

If |vecA+vecB|=|vecA|+|vecB| , then angle between vecA and vecB will be

if| vecAxxvecB|=|vecA.vecB| , then angle between vecA and vecB will be

If |veca.vecb|= |veca xx vecb| , then the angle between veca and vecb is

If vecA.vecB = |vecA xx vecB| , find angle between vecA and vecB .

If |veca - vecb|=|veca| =|vecb|=1 , then the angle between veca and vecb , is

If vecA+ vecB = vecC and A+B+C=0 , then the angle between vecA and vecB is :

If |vecA-vecB|=|vecA|=|vecB| , the angle between vecA and vecB is

If |veca+ vecb| lt | veca- vecb| , then the angle between veca and vecb can lie in the interval

If vecA*vecB=|vecAxxvecB| . Then angle between vecA and vecB is