question_answer

A point object is moving with velocity \[u=2\hat{i}+\hat{j}-\hat{k}m/s\] in front of a stationary plane mirror. The magnitude of relative velocity of the image with respect to object is maximum if the normal of the plane mirror will be along

A) \[2\hat{i}+\hat{j}+\hat{k}\]

B) \[-\,2\hat{i}+\hat{j}-\hat{k}\]

C) \[2\hat{i}+\hat{j}-\hat{k}\]

D) \[2\hat{i}-\hat{j}-\hat{k}\]