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
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the law of reflection?
💡 Hint: Think about how you see yourself in a mirror.
Question 2
Easy
Define refraction.
💡 Hint: Consider how a straw looks in a glass of water.
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 Snell's Law describe?
- Reflection
- Refraction
- Transmission
💡 Hint: Remember: it’s about changes in direction.
Question 2
True or False: A real image can be projected on a screen.
- True
- False
💡 Hint: Reflect on how mirrors and lenses behave.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
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.
Question 2
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.
Challenge and get performance evaluation