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Two plane mirrors are inclined at \( 90^{\circ} \). An object is
\( \mathrm{P} \) placed between them whose coordinates are \( (a, b) \).
\( \mathrm{W} \) The position vectors of all the images formed is
(1) \( -a \hat{i}-b \hat{j}, a \hat{i}+b \hat{j},-a \hat{i}+b \hat{j} \)
(2) \( -a \hat{i}+b \hat{j},-a \hat{i}-b \hat{j}, a \hat{i}-b \hat{j} \)
(3) \( a \hat{i}+b \hat{j},-a \hat{i}-b \hat{j}, a \hat{i}-b \hat{j} \)
(4) None of the above
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