6.2.3 - Lenses
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Practice Questions
Test your understanding with targeted questions
What is the main difference between convex and concave lenses?
💡 Hint: Think about their shape and how they handle light.
What is the formula for magnification?
💡 Hint: Consider height and distances.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What type of lens converges light?
💡 Hint: Remember: Convex lenses are thicker in the middle.
True or False: Concave lenses can form real images.
💡 Hint: Think about how they diverge light.
1 more question available
Challenge Problems
Push your limits with advanced challenges
A convex lens has a focal length of 30 cm. An object is placed 60 cm away from it. Calculate the image distance and describe the image.
💡 Hint: Don’t forget sign conventions in your calculations!
If a concave lens produces a virtual image at a distance of -20 cm when an object is placed at -10 cm, calculate the focal length.
💡 Hint: Remember to pay attention to signs for the distances.
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