9 - RAY OPTICS AND OPTICAL INSTRUMENTS
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Practice Questions
Test your understanding with targeted questions
What is the law of reflection?
💡 Hint: Think about how you see yourself in a mirror.
Define refraction.
💡 Hint: Consider how a straw looks in a glass of water.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does Snell's Law describe?
💡 Hint: Remember: it’s about changes in direction.
True or False: A real image can be projected on a screen.
💡 Hint: Reflect on how mirrors and lenses behave.
1 more question available
Challenge Problems
Push your limits with advanced challenges
A concave mirror has a focal length of 15 cm. An object is located 10 cm in front of the mirror. Calculate the position and characteristics of the image.
💡 Hint: Remember to use the mirror equation correctly.
In a telescope, a star is seen through an eyepiece of focal length 2 cm and an objective lens of focal length 40 cm. Calculate the total magnification.
💡 Hint: Use the formula for magnification of telescopes.
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