Practice Lenses: Shaping Light Through Refraction (Qualitative) - 3.5 | Waves (Light and Sound) | IB Board Grade 9 Physics
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the principal focus of a lens?

💡 Hint: Think about where light rays come together.

Question 2

Easy

What is a diverging lens?

💡 Hint: Consider lenses that help with short sight.

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 happens to parallel rays of light passing through a converging lens?

  • They diverge
  • They converge
  • They remain straight

💡 Hint: Think about the shape of the lens.

Question 2

True or False: A diverging lens can produce a real image.

  • True
  • False

💡 Hint: Consider where the light rays appear to come from.

Solve 2 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

For a converging lens with a focal length of 10 cm, what type of image would be formed if an object is 25 cm away from the lens?

💡 Hint: Use the lens formula and real image characteristics.

Question 2

Describe how the image characteristics change if the object is moved from infinity to within the focal length of a diverging lens.

💡 Hint: Remember that diverging lenses create virtual images regardless of the object position.

Challenge and get performance evaluation