In a simple periscope, the two plane mirrors are positioned?

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1. In a simple periscope, the two plane mirrors are positioned?

Parallel to each other

Perpendicular to each other

At a 60° angle to each other

At a 45° angle to each other

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A periscope’s two mirrors are both tilted at 45° to the tube’s axis, which makes them parallel to one another, redirecting light through two 90° reflections.