Lenses (Edexcel GCSE Physics Combined Science): Quizzes
📚Quizzes
Practise the questions
14 questions from this quiz
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Practise the questions
14 questions from this quiz
How do lenses form images?
How do lenses form images?
By refracting light
What effect does a converging lens have on parallel rays of light?
What effect does a converging lens have on parallel rays of light?
They converge at the principal focus
What effect does a diverging lens have on parallel rays of light?
What effect does a diverging lens have on parallel rays of light?
They spread out as if from a point behind the lens
Where is the principal focus of a converging lens?
Where is the principal focus of a converging lens?
Where parallel rays meet
Where is the principal focus of a diverging lens?
Where is the principal focus of a diverging lens?
Behind the lens
What is a real image?
What is a real image?
Formed when light rays actually come together
Can a real image be projected onto a screen?
Can a real image be projected onto a screen?
Yes
Can a virtual image be projected onto a screen?
Can a virtual image be projected onto a screen?
No
Which is an example of a real image?
Which is an example of a real image?
Image on the retina of your eye
Which is an example of a virtual image?
Which is an example of a virtual image?
Image seen through a magnifying glass
What happens to lens power as curvature increases?
What happens to lens power as curvature increases?
Power increases
What is the focal length of a lens?
What is the focal length of a lens?
Distance from lens to principal focus
How does focal length relate to lens power?
How does focal length relate to lens power?
More powerful lens has shorter focal length
How can you make a lens more powerful by changing its shape?
How can you make a lens more powerful by changing its shape?
Increase the curvature