A) \[2\]
B) \[3\]
C) \[1\]
D) \[9\]
Correct Answer: C
Solution :
Given, sphere is \[|3\,\vec{r}+2\hat{i}-\hat{j}-4\hat{k})|=3\] \[\Rightarrow \] \[3\left| \vec{r}-\left( -\frac{2}{3}\hat{i}+\frac{1}{3}\hat{j}+\frac{4}{3}\hat{k} \right) \right|=3\] \[\Rightarrow \] \[\left| \vec{r}-\left( -\frac{2}{3}\hat{i}+\frac{1}{3}\hat{j}+\frac{4}{3}\hat{k} \right) \right|=1\]You need to login to perform this action.
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