All Flashcards
What is the effect of placing an object at the focal point of a concave mirror?
The reflected rays are parallel, and no image is formed.
What is the effect of a positive image distance () in the mirror/lens equation?
The image is real and inverted.
What is the effect of a negative image distance () in the mirror/lens equation?
The image is virtual and upright.
What is the effect of a positive magnification (M)?
The image is upright.
What is the effect of a negative magnification (M)?
The image is inverted.
What is the effect of |M| < 1?
The image is reduced.
What is the effect of |M| > 1?
The image is enlarged.
What are the steps for ray tracing with mirrors?
- Draw the setup (mirror and object). 2. Draw incident rays. 3. Reflect the rays. 4. Locate the image. 5. Analyze the image.
What are the steps for ray tracing with lenses?
- Draw the setup (lens and object). 2. Draw incident rays. 3. Refract the rays. 4. Locate the image. 5. Analyze the image.
Define 'Principal Axis' of a spherical mirror.
The line through the center of the mirror and the center of curvature.
What is the 'Center of Curvature (C)' of a spherical mirror?
The center of the sphere from which the mirror is a part.
Define 'Focal Length (f)' of a spherical mirror.
The distance from the mirror to the focal point. It's half the radius of curvature: .
What is a 'Converging Lens'?
A lens that converges parallel light rays to a focal point on the far side.
Define 'Diverging Lens'.
A lens that causes light rays to diverge away from a focal point on the same side as the incident rays.
What is 'image distance' ()?
The distance from the image to the mirror or lens.