LCP-17 Measuring the Hydrogen Balmer Series and Rydberg's Constant

Measuring the Hydrogen Balmer Series and Rydberg's Constant The Balmer series is a set of discrete emission spectral lines of the Hydrogen atom. The diffractive grating is used to disperse the collimated beam of hydrogen deuterium lamp, and the diffractive angle of Balmer series line is measured by digital protractor and telescope. The experimental value of Rydberg constant is derived from the wavelength. Specifications Item Specifications Hydrogen-Deuterium Lamp Wavelengths: 410, 434, 486, 656 nm Digital Protractor Resolution: 0.1° Condensing Lens f = 50 mm Collimating Lens f = 100 mm Transmissive Grating 600 lines/mm Telescope Magnification: 8 x; diameter of objective lens: 21 mm with internal reference line Optical Rail Length: 74 cm; aluminum   Part List   Description Qty Optical rail 1 Carrier 3 X-translation carrier 1 Optical rotation stage with digital protractor 1 Telescope 1 Lens holder 2 Lens 2 Grating 1 Adjustable slit 1 Telescop