Exp.8 The Grating Spectrometer

Blue violet: | 13 − 11.5 2 | = ¿ 0.75 Green : | 16.5 − 14.5 2 | = 1 Yellow: | 17.5 − 18.5 2 | = 0.5 Violet: | 2.5 − 2.39 2 | = 0.05 2. Blue-Violet: Percentage Error = ∣ 0.75 − 435.8 435.8 ∣ ×100 = 0.17% Green: Percentage Error = ∣ 1 − 456.1 456.1 ∣ ×100 = 0.18% Yellow: Percentage Error = ∣ 0.5 − 577 577 ∣ ×100 =0.09% Violet: Percentage Error = ∣ 0.5 − 577 577 ∣ ×100 =0.01% CONCLUSION In this experiment, we examined the emission spectrum of Mercury by employing a diffraction grating. Subsequently, we successfully determined the angles corresponding to different lines within the diffraction pattern. By performing calculations, we were able to ascertain certain wavelengths of light that were emitted by Mercury. Regrettably, our experiment did not yield the desired outcomes as we encountered a significant percentage of error for all colors. It is plausible that our measurements of the angles were inaccurate, which may have contributed to this unfavorable outcome.