POLA DISTRIBUSI INTENSITAS SPEKTRUM CAHAYA POLIKROMATIK DARI BERBAGAI MACAM JENIS DAN MERK BOLA LAMPU LISTRIK YANG DIGUNAKAH UNTUK PENERANGAN

Harmadi, Harmadi and Selmidiawati, Selmidiawati and Iljas , Farida (2010) POLA DISTRIBUSI INTENSITAS SPEKTRUM CAHAYA POLIKROMATIK DARI BERBAGAI MACAM JENIS DAN MERK BOLA LAMPU LISTRIK YANG DIGUNAKAH UNTUK PENERANGAN. Project Report. Lembaga Penelitian Universitas Andalas. (Unpublished)

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Abstract

It has been observed that there were spectrum patterns of polychromatic lignt from some electric lamps. Data were obtained by observing spectrum pattern formed by diffraction grating and measurement to diffraction angles and wavelength for each spectrum colour. The data obtained were analized and counted mathematically in order to get diffraction angles and wavelength. Then spectrum intensity distribution pattern can be observed through screen and graphic which is resulted by LDR. The result of the research showed that there were difference kinds of spectrum pattern. There were lamps which radiate continuous spectrum, ribbon spectrum and line spectrum

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