FAQ

What is the Focal Length of Concave Mirror with Real Image?
Focal Length of Concave Mirror with Real Image is the distance between the mirror’s vertex and the image formed by the mirror when the object is real, and the image is real.
Can the Focal Length of Concave Mirror with Real Image be negative?
{YesorNo}, the Focal Length of Concave Mirror with Real Image, measured in {OutputVariableMeasurementName} {CanorCannot} be negative.
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