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Fun, engaging games to boost memory, math fluency, typing speed, and English skillsβperfect for learners of all ages.
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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the primary function of the human eye?
π‘ Hint: Think about how we see objects around us.
Question 2
Easy
What type of lens corrects myopia?
π‘ Hint: Consider the type of lens that spreads 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 part of the eye controls the amount of light entering?
- Cornea
- Lens
- Iris
- Retina
π‘ Hint: It's the colored part of your eye.
Question 2
True or False: A microscope uses both an objective lens and an eyepiece.
- True
- False
π‘ Hint: Think about how we see things up close.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
If you had to design a microscope with a total magnification of 400x using an objective of 40x, what should be the power of the eyepiece?
π‘ Hint: Use the formula M = Mo Γ Me to find the solution.
Question 2
A person suffering from hypermetropia wants to read a book nearby. What type of lens must they use and why?
π‘ Hint: Think about how lenses focus light for clarity.
Challenge and get performance evaluation