If a , b and c are mutually perpendicular unit vectors, then | a + b + c | is equal to :
Physics · JEE Main · NTA Exams — Physics and Measurement
If \(\hat{a}, \hat{b} \text { and } \hat{c}\) are mutually perpendicular unit vectors, then \(|\hat{\mathbf{a}}+\hat{\mathbf{b}}+\hat{\mathbf{c}}|\) is equal to :
- 3
- \(\sqrt{3}\)
- 0
- \(\frac{1}{2}\)
Answer
(B) 3
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