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Question
How would you alter the above diagram to show how a converging lens can produce a beam of parallel rays of light.
Solution
When rays of light come from the focus of lens, the emergent rays of light get parallel to the principal axis.
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RELATED QUESTIONS
Where must the object be placed for the image formed by a converging lens to be:
real, inverted and same size as the object?
Fill in the following blank with suitable word:
A convex lens .................. rays of light, whereas a concave lens .................. rays of light.
Construct ray diagrams to illustrate the formation of a virtual image using a diverging lens.
What is the difference between the two images formed above?
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(a) a plane mirror
(b) a convex lens
(c) a concave lens
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Draw images in case of a concave lens when the object is at infinity.
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