Puy Regardingphoto - electriceffectAn eque conven Lens whose locallength is air is 20em is madeup of material whose retractieindex isles. If one of itssurface is slivered & then dippedin to a transparent liq wholer. Iislob In the lig it wirbehave like a1 Cor2D.L3con& Din

Puy Regardingphoto - electriceffectAn eque conven Lens whose localle

1.	Puy Regardingphoto - electriceffectAn eque conven Lens whose locallength is air is 20em is madeup of material whose retractieindex isles. If one of itssurface is slivered & then dippedin to a transparent liq wholer. Iislob In the lig it wirbehave like a1 Cor2D.L3con& Din
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