Unit vector in direction of vector \(\vec{A}\) will be :
A. \(\hat{\mathrm{A}}=\frac{A}{\vec{A}}\)
B. \(\hat{\mathrm{A}}=\frac{\vec{A}}{A}\)
C. \(\text { (C. } \hat{\mathrm{A}}=A \cdot \vec{A}\)
D. \(\text { (D. } \hat{\mathrm{A}}=A+\vec{A}\)
Answer:B
Unit vector in direction of vector \(\vec{A}\) will be :
A. \(\hat{\mathrm{A}}=\frac{A}{\vec{A}}\) B. \(\hat{\mathrm{A}}=\frac{\vec{A}}{A}\) C. \(\text { (C. } \hat{\mathrm{A}}=A \cdot \vec{A}\) D. \(\text { (D. } \hat{\mathrm{A}}=A+\vec{A}\)