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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the main function of a convex lens?
💡 Hint: Look at the shape and properties of the lens.
Question 2
Easy
What type of image is formed by a concave lens?
💡 Hint: Consider what 'concave' means.
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 image does a convex lens produce when the object is placed at infinity?
- Virtual
- Real
- Inverted
💡 Hint: Consider the basics of how the lens works.
Question 2
True or False: Concave lenses can produce real images.
- True
- False
💡 Hint: Recall the definitions and characteristics of each lens.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A real object is placed 30 cm from a convex lens with a focal length of 10 cm. Find the image position and size.
💡 Hint: Substitute values carefully and solve.
Question 2
You have a concave lens with a focal length of -20 cm. If an object is placed 40 cm from the lens, what are the image characteristics?
💡 Hint: Remember that the image will always be virtual!
Challenge and get performance evaluation