Physics - Plane mirrors

Plane mirror

A perfectly straight surface(180 degrees)

Draw a solid perpendicular line from one point of the object to the mirror and continue with a dotted line onto other side

First step of copying an image on the opposite side of a plane mirror

Draw another line of a random angle from the object, using the first line as the 90 degree angle

Second step of copying an image on the opposite side of a plane mirror

Copy the angle at the end of the second line using the mirror as the 180 degree angle

Third step of copying an image on the opposite side of a plane mirror

Continue the second angled line onto the other side with a dotted line until it intersects with the first dotted line

Fourth step of copying an image on the opposite side of a plane mirror

Arrows, red, and solid(don’t forget to draw arrows of light reflecting back)

Real lines plane mirror criteria

Red and dotted

Virtual lines plane mirror criteria

Dotted and perpendicular to plane mirror

Normal lines plane mirror criteria

Labelled relative to normal/in-between normal and angled line

Angles plane mirror criteria

Drawn in pencil and dotted lines

Reflected image plane mirror criteria

Labelled with subscript “i”

Reflected image points plane mirror criteria