All Flashcards
What type of image is formed when an object is placed at the focal point of a concave mirror?
No image is formed; the reflected rays are parallel.
What effect does a magnification greater than 1 have on the image?
The image is enlarged.
What effect does a negative magnification have on the image?
The image is inverted.
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 .