Vector Algebra Question 320

If a and b be unlike vectors, then a ⋅ b = 0

Options:

A) | a | | b |

B) ? | a | | b |

C) 0

D) None of these

Show Answer

Answer:

Correct Answer: B

Solution:

  • $ \mathbf{a}.\mathbf{b}=|\mathbf{a}||\mathbf{b}| $ , ( $ \because \cos \theta =1 $ ).
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