10.9.3 - Radiation
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Practice Questions
Test your understanding with targeted questions
What is radiation?
💡 Hint: Think of energy transfer that doesn't need air or liquid.
What is a black body?
💡 Hint: It's a perfect absorber!
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is radiation?
💡 Hint: Think of how heat from the sun reaches you.
True or False: A black body reflects all incident radiation.
💡 Hint: Consider what it means to be 'black' in terms of absorption.
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Challenge Problems
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A star emits maximum thermal radiation at a wavelength of 500 nm. Calculate its surface temperature using Wien's Displacement Law.
💡 Hint: Rearrange the formula to solve for temperature.
Measure the temperature of an unknown black body if it radiates 800 W of energy per unit area. Use the Stefan-Boltzmann Law to find the temperature.
💡 Hint: Remember to use the right units and constants.
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