HOLLOW LENS - OBSERVATIONS : We observed that the light...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
1 OBSERVATIONS : We observed that the light rays travelling in a converging manner in some instances, and also diverging in some cases. First we used the hollow lens in the air……… Lens surrounded by: Section 1 filled with: Section 2 filled with: Section 3 filled with: Prediction (converging or diverging) Observations (converging or diverging) Air Water Air Air Converging Diverging Air Water Air Diverging Converging Air Air Water Converging Converging Water Air Water Diverging Diverging Water Air Water Water Converging Converging Water Air Water Diverging Diverging Water Water Air Converging Diverging Table No 1.0 Hollow lens surrounded by water……… 1 Light rays 2 Hollow lens 3 Water A conventional lens is made of a material whose index of refraction is higher than that of the surrounding medium. For instance, the lenses in a pair of eyeglasses are usually made from glass or plastic with an index of refraction of 1.5 or higher, while the air surrounding the lenses has an index of refraction of 1.0. However, a lens can also have a lower index of refraction than the surrounding medium, as is the case when a hollow lens is “filled with air” and surrounded by water.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2 QUESTIONS AND ANSWERS : 1. Under what conditions is a plano-convex lens converging? Under what conditions is it diverging? Lens is surrounded by air :
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 4

HOLLOW LENS - OBSERVATIONS : We observed that the light...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online