Method:
1. Set up a ray box, triple slit-ray slide and power supply.
2. Place the convex lens in the space. Place the ray box at the top of the page and shine three rays of light at the lens. Make sure the central light ray hits the lens at 90 degrees.
4. Repeat using the concave lenses.
When light passes throughthis type of lens, the rays all move away (diverge) from each other. One use of these lenses is in security peepholes in a door so that a person inside a room cna see who is at the door without having to open it.
The lenses described in the paragraph above is a concave.
When light passes through this type of lens, the rays all move towards (converge) each other. One use of these lenses is in a camera, to focus the light onto the film or digital sensor. Magnifying glasses also use this type of lens.
The lens described in the paragraph above is a convex.
No comments:
Post a Comment
To support my learning I ask you to comment as follows:
1. Something positive - something you like about what I have shared.
2. Thoughtful - A sentence to let us know you actually read/watched or listened to what I had to say
3. Something thoughtful - how have you connected with my learning? Give me some ideas for next time or ask me a question.
Note: only a member of this blog may post a comment.