Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is thermal radiation?
💡 Hint: Think of temperature and energy.
Question 2
Easy
Name the three modes of interaction for thermal radiation.
💡 Hint: Consider how radiation interacts with surfaces.
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 is thermal radiation?
💡 Hint: Focus on temperature and energy.
Question 2
True or False: Radiation requires a medium to propagate.
💡 Hint: Consider how light travels.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A blackbody at 500 K emits energy. Calculate its emissive power using the Stefan-Boltzmann Law. Then, compare to a grey surface with an emissivity of 0.8 at the same temperature.
💡 Hint: Use provided constants and apply the right formulas.
Question 2
Analyze a situation in a furnace with two surfaces: Surface A with T1=800 K and ε1=0.9; Surface B with T2=400 K and ε2=0.2. Calculate the heat transfer using q12 formula.
💡 Hint: Be careful with the values used in the q12 equation.
Challenge and get performance evaluation