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primary 5 | Maths
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Joel
Joel

primary 5 chevron_right Maths

Pls help with question b as soon as possible
Great thanks for helping

Date Posted: 6 years ago
Views: 295

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Sharlert
Sharlert's answer
12 answers (A Helpful Person)
1st
Brightness of the light source must be kept constant to determine the amount of light passing through