5.8 - Numerical Examples
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Practice Questions
Test your understanding with targeted questions
What is the focal length of a convex lens if the image distance is 15 cm and the object distance is 10 cm?
💡 Hint: Use the lens formula.
What type of lens is known as a diverging lens?
💡 Hint: Think about how it behaves with light.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the focal length of a convex lens producing an image at 25 cm when the object is at 50 cm?
💡 Hint: Consider the lens formula.
True or False: A concave lens always creates real images.
💡 Hint: Remember the types of images produced by concave lenses.
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Challenge Problems
Push your limits with advanced challenges
A researcher places an object 20 cm in front of a convex lens with a focal length of 5 cm. Calculate the image location and characteristics.
💡 Hint: Use the lens formula to find the solution.
A student experiments with a concave lens and places an object at 12 cm. If the focal length is -8 cm, where will the image be formed?
💡 Hint: Remember the sign conventions for concave lenses.
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Reference links
Supplementary resources to enhance your learning experience.