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Ooi Thaim Seng
Ooi Thaim Seng

primary 6 chevron_right Science chevron_right Singapore

why is the answer 3

Date Posted: 7 months ago
Views: 177
7 months ago
Imagine the table lamp as the sunlight. To block out all the sunlight, the curtain must be opaque so that no shadow will be form when light is turn on. Hence the ans is C
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5 months ago
To make sure that we block Out ALL sunlight, materi MUSTBE OPAQUE. When a light shines on this object, and it does not have a shadow, it does not allow ANY LIGHT TO PASS THROUGH.

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Jolynn Ee
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