Physics of the Eye (AQA A-Level Physics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What can a person with myopia see clearly?
What can a person with myopia see clearly?
Nearby objects only
What type of lens corrects myopia?
What type of lens corrects myopia?
Diverging lens with negative power
Where does the image form in an uncorrected myopic eye viewing a distant object?
Where does the image form in an uncorrected myopic eye viewing a distant object?
In front of the retina
What is the normal near point distance for the human eye?
What is the normal near point distance for the human eye?
25 cm
What type of lens corrects hypermetropia?
What type of lens corrects hypermetropia?
Converging lens with positive power
What is the unit of lens power?
What is the unit of lens power?
Dioptres (D)
How is the total refracting power of combined lenses calculated?
How is the total refracting power of combined lenses calculated?
Sum of individual powers
What causes astigmatism?
What causes astigmatism?
Non-spherical cornea
How do cylindrical lenses focus parallel light rays?
How do cylindrical lenses focus parallel light rays?
To a line
What are the three components of an astigmatism prescription?
What are the three components of an astigmatism prescription?
Sphere, Cylinder, Axis