PIRA: 7B10.10

Equipment

• Spectrum tube power supply
• Spectrum tubes (hydrogen, helium, neon, mercury)
• diffraction gratings (approx. 40)
• variac
• showcase bulb in wood base
• lab jack
• cylindrical diffraction grating

Instructions

1.  Mount tube in power supply.
2. Turn on power supply.
3.  View tube through grating