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What are the steps to determine image characteristics using a ray diagram?
1. Draw the mirror and principal axis. 2. Draw the object. 3. Draw at least two principal rays accurately. 4. Locate the image at the intersection of the reflected rays. 5. Determine if the image is upright or inverted, real or virtual, and reduced, enlarged, or the same size.
What are the key differences between real and virtual images?
Real images: Formed by convergence of light rays, can be projected. | Virtual images: Formed by apparent divergence of light rays, cannot be projected.
Compare and contrast concave and convex mirrors.
Concave mirrors: Converging, can form real or virtual images. | Convex mirrors: Diverging, always form virtual images.
What is a concave mirror?
A mirror that curves inward, also known as a converging mirror.
What is a convex mirror?
A mirror that bulges outward, also known as a diverging mirror.
What is a plane mirror?
A flat mirror that reflects light without converging or diverging.
Define focal length (f).
The distance from the mirror's surface to its focal point.
What is a real image?
An image formed when light rays converge in front of the mirror. It can be projected onto a screen.
What is a virtual image?
An image formed when light rays appear to diverge from behind the mirror. It cannot be projected onto a screen.
Define image magnification (M).
The ratio of the image size to the object size, given by $|M|=\left|\frac{h_{i}}{h_{o}}\right|=\left|\frac{s_{i}}{s_{o}}\right|$.