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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define a convex lens.
💡 Hint: Think about the shape and function of the lens.
Question 2
Easy
What is the principal axis in a lens?
💡 Hint: Consider the central reference line of the lens.
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 type of lens is thicker in the middle and converges light rays?
- Concave
- Convex
- Flat
💡 Hint: Think about curvature.
Question 2
True or False: A concave lens always forms real images.
- True
- False
💡 Hint: Remember the properties of the images formed by different lens types.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
If a convex lens has a focal length of 10 cm, where will the image form when the object is 30 cm away?
💡 Hint: Apply the lens formula and remember to use the correct signs.
Question 2
Explain how you would obtain a virtual image using a concave lens and a specific object placement.
💡 Hint: Consider the interaction of diverging rays.
Challenge and get performance evaluation