All Flashcards
What are the three principal rays used in ray diagrams for mirrors?
- Parallel Ray: Reflects through the focal point (concave) or appears to come from the focal point (convex). 2. Center Ray: Reflects at the same angle. 3. Focal Ray: Passes through the focal point (concave) or directed toward the focal point (convex) reflects parallel to the principal axis.
How do you determine the image location using ray diagrams?
Draw at least two principal rays accurately. The intersection of the reflected rays indicates the image location.
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, cannot be projected.
Compare and contrast concave and convex mirrors in terms of image formation.
Concave mirrors: Can form real or virtual, upright or inverted, enlarged or reduced images. Convex mirrors: Always form virtual, upright, and reduced images.