Sketched below are several objects (the arrows labeled "O") in front of lenses. In each case, carefully redraw the sketch on your whiteboard, and then (a) Draw 3 principal rays leaving the top of the object; (b) Locate the image; (c) State whether the image is real or virtual, inverted or upright, and larger or smaller than the object.
Applications Of Reflection Of Light
When a light ray (termed as the incident ray) hits a surface and bounces back (forms a reflected ray), the process of reflection of light has taken place.
Sign Convention for Mirrors
A mirror is made of glass that is coated with a metal amalgam on one side due to which the light ray incident on the surface undergoes reflection and not refraction.
Sketched below are several objects (the arrows labeled "O") in front of lenses. In each case,
carefully redraw the sketch on your whiteboard, and then
(a) Draw 3 principal rays leaving the top of the object;
(b) Locate the image;
(c) State whether the image is real or virtual, inverted or upright, and larger or smaller than the
object.
(iv) For diagram #iii, suppose the focal length is 5 cm and the object is placed 7 cm from the lens. Find the exact location and magnification of the image. Does this agree with your expectation from the ray diagram?
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