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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Name the two main types of lenses.
💡 Hint: Think about how they manipulate light.
Question 2
Easy
What happens to light rays passing through a convex lens?
💡 Hint: Focus on the term 'converge'.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is a convex lens used for?
- To diverge light
- To converge light
- To absorb light
💡 Hint: Think about how the rays behave.
Question 2
Concave lenses are thicker in the middle than at the edges.
- True
- False
💡 Hint: Consider the shape of the lens.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
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.
Question 2
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.
Challenge and get performance evaluation