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DHT28 Spectrum of an Incandescent Bulb

Objective:

– To observe the changing spectrum of an incandescent filament with a prism spectroscope as the filament heats up.

Apparatus:

  • Spectroscope
  • Prism
  • Black Cover
  • Incandesant Light Bulb (CI-6514)
  • S4-C Power Supply
  • Jack Stand
  • Banana Leads

Spectrum of an Incandescent Light Bulb

Method:

– See Lab Manual for setup (OP06/AP02).

-The spectrum starts at roughly 25° on the 360° circular table (telescope is pointing very close to one of the vertical edges).

-Black cover is not required.

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