Practice - Key Formulae
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Practice Questions
Test your understanding with targeted questions
What is the lens formula?
💡 Hint: Remember how it relates distances for lenses.
Define the term 'Magnification'.
💡 Hint: Think about how images appear larger or smaller.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the correct formula for the lens?
💡 Hint: Think of the signs and the type of lens.
True or False: The refractive index can be greater than 1.
💡 Hint: Consider what happens to light when it passes through different materials.
1 more question available
Challenge Problems
Push your limits with advanced challenges
A concave mirror has a focal length of 10 cm. If an object placed 5 cm from the mirror causes an image to appear behind the mirror, calculate the image distance.
💡 Hint: Pay attention to the sign conventions in the mirror formula.
In a double-slit experiment, if the wavelength of light is 600 nm and slit separation is 0.2 mm, calculate the distance between bright fringes on a screen placed 3 m away.
💡 Hint: Convert all units to meters before substitution for calculation.
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