Physics
Classify as real or virtual, the image of a candle flame formed on a screen by a convex lens. Draw a ray diagram to illustrate how an image is formed.
Answer
When the candle is placed beyond 2F1, the image is formed between F2 and 2F2.
The image is real, diminished and inverted.
In the ray diagram shown below, the candle is represented as AB and its real, inverted and diminished image is represented as A'B' formed between F2 and 2F2.
Related Questions
A lens forms an image between the object and the lens.
(a) Name the lens.
(b) Draw a ray diagram to show the formation of such an image.
(c) State three characteristics of the image.
A lens forms an erect, magnified and virtual image of an object.
(a) Name the kind of lens.
(b) Where is the object placed in relation to the lens?
(c) Draw a ray diagram to show the formation of image.
(d) Name the device which uses this principle.
Show by a ray diagram that a diverging lens cannot form a real image of an object placed anywhere on its principal axis.
Draw a ray diagram to show how a converging lens can form a real and enlarged image of an object.