![For the mechanism shown in the figure, has following dimensions: OA = 300 mm, AB = 600 mm, AC = BD = 1.2 m, OD is horizontal for given configuration. For the mechanism shown in the figure, has following dimensions: OA = 300 mm, AB = 600 mm, AC = BD = 1.2 m, OD is horizontal for given configuration.](https://i.imgur.com/EOSQfUu.png)
For the mechanism shown in the figure, has following dimensions: OA = 300 mm, AB = 600 mm, AC = BD = 1.2 m, OD is horizontal for given configuration.
![A diffraction grating having 600 lines per mm is illuminated normally by light of wovelength 600 - YouTube A diffraction grating having 600 lines per mm is illuminated normally by light of wovelength 600 - YouTube](https://i.ytimg.com/vi/znAz66MdEdg/maxresdefault.jpg)
A diffraction grating having 600 lines per mm is illuminated normally by light of wovelength 600 - YouTube
![SOLVED: A diffraction grating with 600 lines/mm is illuminated with light of wavelength 625 nm. A very wide viewing screen is 2.4 m behind the grating. How many bright fringes can be SOLVED: A diffraction grating with 600 lines/mm is illuminated with light of wavelength 625 nm. A very wide viewing screen is 2.4 m behind the grating. How many bright fringes can be](https://cdn.numerade.com/ask_previews/b1147cc4-c077-4e09-9c09-777c0f610fde_large.jpg)