Balmer Series and Emission Spectra

BALMER SERIES AND EMISSION SPECTRA SK071

Exp-1 Observing the Balmer series of hydrogen using Bunsen-kirchoff spectroscope.
Exp-2 Qualitative investigation of emission spectra.

Electrical safety tested power supply with overload current protection.
Tube filed with research-grade gasses & vapors.

Bohr atomic model.
Visible spectrum.
Energy level.
Rydberg atom.
Rydberg's constant.

Bunsen-Kirchoff spectroscope is ideal for observation and measurement of emission and absorption spectra.
In the present setup, the Balmer series of hydrogen and wavelengths of unknown gases can be studied using this spectroscope. The scale tube of the spectrometer is initially calibrated with the help of mercury light source so that the marked numbers on the scale tube correspond to the particular wavelength of light. Subsequently the emission spectrum of hydrogen and nitrogen can be investigated.

Contents:

Cat. No.	Item Name	Qty.
SL807	Spectroscope (Bunsen-Kirchoff)	1
SW281	Spectrum Tube Power Supply	1
SN631	Hydrogen Tube	1
SN634	Nirtogen Tube	1

Spectroscope SL807
- SPECIFICATIONS Observation tube : moveable, with locking screw, slidable eyepiece
  Objective : 18 mm / 160 mm
  Slit tube : stationary, with symmetrical slit
  Scale tube : stationary, 200-division scale
  Eyepiece : 18 mm aperture, 90 mm focal length
  Scale : Can be calibrated in wavelengths
  Prism : Flint glass (60°)
  Dispersion : C-F 2°
  Total height : 25 cm (approx.)
Spectrum Tube Power Supply SW281
- SPECIFICATIONS Input Voltage : 220V, 50 Hz AC
  Output Voltage : 0-5000V (open circuit)
  Overload : 2mA (Max.) with reset swtich
  Socket : Spring loaded
  Protection window for tube with red switch for safe operation
Spectrum Tubes
- SPECIFICATIONS HYDROGEN TUBE SN631
  Gas : Hydrogen research grade
  Violet : 420, 440nm
  Blue : 490nm
  Red : 670nm
  NITROGEN TUBE SN634
  Gas : Nitrogen research grade
  Violet : 400,405,410,415,420,425,440,445nm
  Blue : 500,505,520nm
  Green : 530,540,550,560nm
  Yellow : 580,585,590nm
  Red : 600,615,620,625,630,635,640, 645, 650, 660, 670, 675, 680, 685nm
Mercury Light Source SW440
- SPECIFICATIONS Gas : Hydrogen research grade
  Violet : 420, 440nm
  Blue : 490nm
  Red : 670nm
  * Supplied on Request

* Additionally Required
Other tubes like Helium, Neon, Argon, Oxygen etc.

BALMER SERIES AND EMISSION SPECTRA SK071

Atomic & Nuclear Physics Experiments

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