Lesson Plan: Drawing Ray Diagrams for Convex Mirrors | Nagwa Lesson Plan: Drawing Ray Diagrams for Convex Mirrors | Nagwa

# Lesson Plan: Drawing Ray Diagrams for Convex Mirrors Science • Third Year of Preparatory School

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This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to draw diagrams of light rays interacting with convex mirrors.

#### Objectives

Students will be able to

• show using diagrams that parallel incident rays on a spherical mirror are reflected through the focal point of the mirror,
• show using diagrams that incident rays that pass through the focal point are reflected parallel to the optical axis,
• show using diagrams that incident rays that pass through the center of curvature are reflected back through the center of curvature,
• recall that a real image is an image that can be projected onto a screen,
• recall that a virtual image is an image that cannot be projected onto a screen,
• draw ray diagrams to determine the position of an image produced by reflection from a spherical mirror,
• identify from ray diagrams of reflection from spherical mirrors whether the image is real or virtual,
• identify from ray diagrams of reflection from spherical mirrors whether the image is magnified or reduced in size,
• identify from ray diagrams of reflection from spherical mirrors whether the image is inverted or upright.

#### Prerequisites

Students should already be familiar with

• the idea that light travels in straight lines,
• reflection from flat mirrors,
• drawing diagrams of reflection from flat mirrors,
• what convex mirrors are.

#### Exclusions

Students will not cover

• concave mirrors,
• lenses,
• refraction,
• wavefronts,
• aberration,
• curved mirrors that are not spherical, such as parabolic mirrors.

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