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Predicting Images in a Convex Lens
The Principal rays A ray parallel to the principal axis is refracted through the principal focus (F ).
The Principal rays A ray through the optical centre (O) continues straight through without being refracted.
Ray diagram when the OBJECT is beyond 2F S- Smaller A- Inverted L- between F and 2F T- real
Ray diagram when the OBJECT is AT 2F S- same size A- inverted L- on 2F T- real
Ray diagram when thE OBJECT is BETWEEN 2F and F S- larger A- Inverted L- beyond 2F T- real
Ray diagram when the image is AT F No Image
Ray diagram when the image is between F and O S- larger A- upright L- between 2F’ and F’ T- virtual
http://www.physics-chemistry-interactive-flash- animation.com/optics_interactive/converging_lens_con vex_positive.htm
Predicting Images in a Concave Lens
Any incident ray parallel to the principal axis will refract as if it had passed through the principal Focus. Concave Lens Characteristic Rays
Any incident ray passing through the Optical Centre will pass unrefracted (straight through).
Concave Lenses All Cases S- smaller A- upright L- in front of F T- virtual
Homework Pg. 561 #2, 3, 5, 6, 8
Lenses. Transparent material is capable of causing parallel rays to either converge or diverge depending upon its shape.
Real or Virtual? Real images A real image is one which can be produced on a screen and is formed by rays that converge. Imaginary images A virtual image.
Light and Optics Mirrors and Lenses. Types of Mirrors Concave mirrors – curve inward and may produce real or virtual images. Convex mirrors – curve outward.
Pinhole Cameras Converging & Diverging Lenses. Pinhole Image.
Types of Lenses If you have ever used a microscope, telescope, binoculars, or a camera, you have worked with one or more lenses. A lens is a curved transparent.
LENS any transparent object having two nonparallel curved surfaces or one plane surface and one curved surface Converging Lenses - thicker in middle than.
Curved Mirrors. Two types of curved mirrors 1. Concave mirrors – inwardly curved inner surface that converges incoming light rays. 2. Convex Mirrors –
Grade 10 Science – Optics Unit Cardinal Ambrozic C.S.S.
Refraction of Light EM lesson 8. Thicker in the center than at the edges Have positive focal lengths Converge parallel rays of light that pass through.
Physics 1161 – Prelecture 23 Converging & Diverging Lenses.
Curved Mirrors and Ray Diagrams SNC2D. Concave Mirrors A concave mirror is a curved mirror with the reflecting surface on the inside of the curve. The.
Concave/Convex Mirror Image Formation Rules 1.Parallel Rays - Light rays parallel to the principal axis are reflected through the focus of the mirror.
TopicSlidesMinutes 1 Displacement Vectors Kinematics Graphs Energy Power Springs Shadows 39 9 Field of.
Convex Lens A convex lens curves outward; it has a thick center and thinner edges.
2 Types of Lenses:. thickest in middle & thinnest at edge causes rays parallel to principal axis to converge through a single point (principal focus)
A. can be focused on a screen. B. can be projected on a wall.
There are some mirrors that distort the reflected image. Cosmetic mirrors magnify things, and other mirrors make things look smaller.
Can YOU determine the general characteristics of the “image” 1.Its location (closer than, further than or the same distance as the object and the mirror)
11.6 Using Curved Mirrors Text pages
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