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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the definition of magnification?
💡 Hint: Think about how we compare the size of an image to the original object.
Question 2
Easy
What type of lens always produces a diminished, virtual image?
💡 Hint: Remember which lens diverges the light rays.
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 the formula for magnification?
- M = h1/h2
- M = h2/h1
- M = v/u
💡 Hint: Think about how we express the size relationship.
Question 2
A concave lens always produces which type of image?
- Real
- Virtual
💡 Hint: Recall the nature of how concave lenses work.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A convex lens has a focal length of 20 cm. Calculate the image position and magnification when an object is placed 60 cm from the lens.
💡 Hint: Apply the lens formula and think about the implications of the distance.
Question 2
If an object is placed 12 cm from a concave lens with a focal length of -8 cm, find the image distance and characteristics of the image.
💡 Hint: Use the convention for concave lenses and remember its given focal length.
Challenge and get performance evaluation