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Describe how the focal length of a concave mirror can be determined using a screen and a metre rule.
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asked
Jun 21, 2021
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Physics Form 2
by
anonymous
Describe how the focal length of a concave mirror can be determined using a screen and a metre rule.
reflections
curved surfaces
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Jun 21, 2021
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anonymous
Using the mirror focus a distant object on to the screen
Adjust the distance the screen & mirror to obtain a sharp image
Measure the distance between the screen & the mirror - this is the focal length of the mirror
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