You want to photograph a circular diffraction pattern whose central maximum has a diameter of . You have a helium neon laser and a -diameter pinhole. How far behind the pinhole should you place the screen that’s to be photographed?
Distance for the screen to be photographed,
When light passes through a narrow opening, such as an aperture with a low f-number, it causes lens diffraction, which is an optical interference.
When the wavelength of light and the size of the opening are about the same, lens diffraction occurs.
In the aperture diffraction experiment, the center width is given by,
We can find by solving parametrically.
This will be the length in our situation.
94% of StudySmarter users get better grades.Sign up for free