Lenses (AQA GCSE Physics): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What is the name of the process by which lenses bend light?
What is the name of the process by which lenses bend light?
Refraction
How would you describe the shape of a convex lens?
How would you describe the shape of a convex lens?
Thicker in middle, thinner at edges
How would you describe the shape of a concave lens?
How would you describe the shape of a concave lens?
Thinner in middle, thicker at edges
What do convex lenses do to light rays passing through them?
What do convex lenses do to light rays passing through them?
Bend them towards each other
What do concave lenses do to light rays passing through them?
What do concave lenses do to light rays passing through them?
Bend them away from each other
What type of lens is used in a magnifying glass?
What type of lens is used in a magnifying glass?
Convex
What type of lens is used in spectacles for short-sighted people?
What type of lens is used in spectacles for short-sighted people?
Concave
What is the principal focus of a convex lens?
What is the principal focus of a convex lens?
Where parallel rays meet
How does lens thickness affect focal length?
How does lens thickness affect focal length?
Thicker lenses have shorter focal lengths
What is the key feature of a real image?
What is the key feature of a real image?
It can be projected onto a screen
What type of image do concave lenses always produce?
What type of image do concave lenses always produce?
Virtual
When does a convex lens produce a virtual image?
When does a convex lens produce a virtual image?
When the object is very close to it