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Lizzy cannot see far-away objects clearly; she has
sclera
two convex lenses
the light rays need to be re-focussed using lenses
reflecting
the pupil is larger in dim light
to make a clear image by adjusting the distance between the screen and the lens
far-sightedness
are opaque glass fibres
Which of the following is FALSE about optical fibres
sclera
two convex lenses
the light rays need to be re-focussed using lenses
reflecting
the pupil is larger in dim light
to make a clear image by adjusting the distance between the screen and the lens
far-sightedness
are opaque glass fibres
What does a microscope use to magnify objects?
sclera
two convex lenses
the light rays need to be re-focussed using lenses
reflecting
the pupil is larger in dim light
to make a clear image by adjusting the distance between the screen and the lens
far-sightedness
are opaque glass fibres
To fix astigmatism
sclera
two convex lenses
the light rays need to be re-focussed using lenses
reflecting
the pupil is larger in dim light
to make a clear image by adjusting the distance between the screen and the lens
far-sightedness
are opaque glass fibres
What does the term 'focus' mean?
sclera
two convex lenses
the light rays need to be re-focussed using lenses
reflecting
the pupil is larger in dim light
to make a clear image by adjusting the distance between the screen and the lens
far-sightedness
are opaque glass fibres
Which of the following is true?
sclera
two convex lenses
the light rays need to be re-focussed using lenses
reflecting
the pupil is larger in dim light
to make a clear image by adjusting the distance between the screen and the lens
far-sightedness
are opaque glass fibres
Which of the following is the white part of the eye?
sclera
two convex lenses
the light rays need to be re-focussed using lenses
reflecting
the pupil is larger in dim light
to make a clear image by adjusting the distance between the screen and the lens
far-sightedness
are opaque glass fibres
The Hubble telescope is an example of a ____________ telescope
sclera
two convex lenses
the light rays need to be re-focussed using lenses
reflecting
the pupil is larger in dim light
to make a clear image by adjusting the distance between the screen and the lens
far-sightedness
are opaque glass fibres
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