NEWTON’S RING APPARATUS WITH TRAVELLING MICROSCOPE
- This apparatus is especially designed for use in Newton’s ring experiment. The rings can be produced and measured in the space of a few minutes.
- The entire apparatus is self-contained except for the light source.
- It consists of a micrometer driven travelling microscope, which is integrated with the Newton’s rings’ set up.
- An optically worked reflecting glass is mounted above the Newton’s rings’ set up, at an angle of 450.
- When light from a sodium lamp falls on this glass which is inclined at 45° to the horizontal, it gets reflected, and then falls normally on the convex lens placed over the glass plate.
- A system of bright and dark concentric circular rings is observed through the travelling microscope which is arranged vertically above the glass plate.
- The microscope is properly focused so that alternate bright and dark concentric circular rings are observed more clearly.
- Accurate Measurements are then taken from the precision micrometer of the travelling microscope.
- Newton`s Ring apparatus is an ideal platform to understand the wave nature of light.