Investigation Into The Focal Point Of Lenses
Abstract The aim of the investigation is to determine where the focal points of lenses are for each lens. Hypothesis My hypothesis is that the lenses will each have a constant focal point but the distances will vary from lens to lens. Because 1/v=1/u + 1/f, where v is the distance from the lens to its focal point, u is the distance from the object to the lens and 1/f is the power of the lens. ... Equipment List Ø Ray Box Ø Single Slit Ray Filter Ø 12v AC Lab Pack Ø 1 Meter Rule Ø ‘Red’ Lens Ø ‘Yellow’ Lens Ø ‘Blue’ Lens Ø Work Bench Method Preliminary Method Research Before obtaining our results we decided to do a small, unrecorded test run to determine the intervals at which we measured the focal point.