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CBSE Class 11-science Answered

based on vectors
Asked by Sonal13 | 01 May, 2010, 12:40: PM
Expert Answer

Dear Student,

 

The magnitude of the difference of two vectors a and b can be calculated as

 

Similarly for magnitude of the sum of a and b

 

Now for two unit vectors a and b,

magnitude of a = 1 and magntude of b = 1

 

=> magnitude of (a+b) =

 

Therefore the correct answer is (b).

 

Regards Topperlearning.

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