Practice - Lenses
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Practice Questions
Test your understanding with targeted questions
Name the two main types of lenses.
💡 Hint: Think about how they manipulate light.
What happens to light rays passing through a convex lens?
💡 Hint: Focus on the term 'converge'.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is a convex lens used for?
💡 Hint: Think about how the rays behave.
Concave lenses are thicker in the middle than at the edges.
💡 Hint: Consider the shape of the lens.
1 more question available
Challenge Problems
Push your limits with advanced challenges
An object is placed 15 cm from a concave lens with a focal length of -5 cm. Calculate the image distance and describe the image.
💡 Hint: Remember to apply the sign convention for concave lenses.
If a convex lens has a focal length of 20 cm and is used to project an image of an object located at a distance of 30 cm from the lens, find the image distance and determine the nature of the image.
💡 Hint: Check how different distances affect the image's nature.
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