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Lenses - Radiation and waves: Video playlist - BBC Bitesize
Jonny Nelson introduces an explanation of lenses.
↗ https://www.bbc.co.uk/bitesize/topics/zmxdfdm/watch/zj4wfdmJonny Nelson introduces an explanation of lenses.
↗ https://www.bbc.co.uk/bitesize/topics/zmxdfdm/watch/zj4wfdm