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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define transmissivity.
💡 Hint: Think about how windows let light through.
Question 2
Easy
What is the relationship between absorptivity, reflectivity, and transmissivity?
💡 Hint: Consider energy conservation.
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 does transmissivity (τ) represent?
- The fraction of radiation absorbed
- The fraction of radiation transmitted
- The fraction of radiation reflected
💡 Hint: Think about what happens with light passing through glass.
Question 2
True or False: The equation α + ρ + τ = 1 is true for opaque materials only.
- True
- False
💡 Hint: Consider what happens with transparent materials like glass.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A transparent polycarbonate sheet has an absorptivity of 0.15 and a reflectivity of 0.10. Calculate the transmissivity and analyze how this affects its use in greenhouses.
💡 Hint: Use the formula for transmissivity carefully.
Question 2
You are tasked with designing a solar panel array. If the desired absorptivity is 0.8, what maximum transmissivity can the covering layer have? Discuss the design choices you would make based on this.
💡 Hint: Rearrange the energy balance equation to find the limits on your design.
Challenge and get performance evaluation