A lens which is thick in the middle and thin around the edges
(A) brings parallel light rays together.
(B) spreads parallel light rays apart.
(C) brings all light rays together.
(D) spreads all light rays apart.
A lens which is thick in the middle and thin around the edges
(A) brings parallel light rays together.
Yes. ---- They all pass through a focal point.
A lens which is thick in the middle and thin around the edges
(B) spreads parallel light rays apart.
No. --- that would require a lens which is thin in the middle,
A lens which is thick in the middle and thin around the edges
(C) brings all light rays together.
No. --- No lens can do that.
A lens which is thick in the middle and thin around the edges
(D) spreads all light rays apart.
No. --- No lens can do that.
A lens which is thin in the middle and thick around the edges
(A) brings parallel light rays together.
(B) spreads parallel light rays apart.
(C) brings all light rays together.
(D) spreads all light rays apart.
A lens which is thin in the middle and thick around the edges
(A) brings parallel light rays together.
No. --- that would require a lens which is thick in the middle,
A lens which is thin in the middle and thick around the edges
(B) spreads parallel light rays apart.
Yes. --- The rays appear to come from a point.
A lens which is thin in the middle and thick around the edges
(C) brings all light rays together.
No. --- No lens can do that.
A lens which is thin in the middle and thick around the edges
(D) spreads all light rays apart.
No. --- No lens can do that.
(A) a diverging lens.
(B) a pinhole camera.
(C) a flat mirror.
(D) a converging lens.
(A) a diverging lens.
No. The light would need to strike from the bottom for that.
(B) a pinhole camera.
No. --- No film.
(C) a flat mirror.
No. --- Parallel rays are not reflected in parallel directions.
(D) a converging lens.
Yes. --- Parallel rays are brought to a focus.