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3-1.Vectors
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A vector has a magnitude $x$. If it is rotated by an angle $\theta$, then magnitude of change in vector is $n x$. Match the following two columns.
| Colum $I$ | Colum $II$ |
| $(A)$ $\theta=60^{\circ}$ | $(p)$ $n=\sqrt{3}$ |
| $(B)$ $\theta=90^{\circ}$ | $(q)$ $n=1$ |
| $(C)$ $\theta=120^{\circ}$ | $(r)$ $n=\sqrt{2}$ |
| $(D)$ $\theta=180^{\circ}$ | $(s)$ $n=2$ |
A$( A \rightarrow q , B \rightarrow r , C \rightarrow p , D \rightarrow s )$
B$( A \rightarrow s , B \rightarrow r , C \rightarrow p , D \rightarrow q )$
C$( A \rightarrow q , B \rightarrow p , C \rightarrow r , D \rightarrow s )$
D$( A \rightarrow p , B \rightarrow r , C \rightarrow q , D \rightarrow s )$
Solution
(a)
Standard 11
Physics
