Refraction
2 marks · NormalState two scientific devices that use the refraction of light and briefly describe how refraction is useful in each.
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Microscope (refraction bends light to magnify the image), Camera (lens refracts light to focus an image on a sensor or film).
Also accept: Telescope: uses refraction by lenses to gather and focus light; Glasses: lenses refract light to correct vision.
Common mistakes: Devices not involving refraction; No description of use
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Marking points
B1 · 1 mark · Names any scientific device where refraction occurs
B1 · 1 mark · Describes how refraction is used in the device
Worked solution
Example 1: Microscope – uses lenses to refract light, magnifying small objects. Example 2: Camera – refracts light with a lens to focus it on a sensor, forming a clear image.