- #1

- 26

- 0

does anybody know what the simplest device that can be used to measure monochromatic light wavelength exactly? Thanks.

- Thread starter silin
- Start date

- #1

- 26

- 0

does anybody know what the simplest device that can be used to measure monochromatic light wavelength exactly? Thanks.

- #2

OlderDan

Science Advisor

Homework Helper

- 3,021

- 2

The simplest ways I can think of involve interference. For example, you can use:silin said:

does anybody know what the simplest device that can be used to measure monochromatic light wavelength exactly? Thanks.

A diffraction grating (probably the best)

A pair of optical flats with high precision spacers

An optical flat and a precision plano convex lens of known radius to form Newton's rings.

- Replies
- 3

- Views
- 2K

- Replies
- 2

- Views
- 30K

- Replies
- 1

- Views
- 4K

- Last Post

- Replies
- 14

- Views
- 2K

- Replies
- 2

- Views
- 728

- Replies
- 4

- Views
- 242

- Last Post

- Replies
- 4

- Views
- 3K

- Last Post

- Replies
- 6

- Views
- 1K

- Last Post

- Replies
- 4

- Views
- 2K

- Last Post

- Replies
- 0

- Views
- 2K