Hartmann's formula using constant deviation spectrograph

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To measure the wavelength of absorption bands of KMnO4 and calculate it's Hartmann's constant. Introduction: An instrument used to study the spectra with unaided eye is called spectroscope or spectrometer. When it is used to photograph, the spectrum Here, the different wavelengths of light are refracted and can be viewed through the second arm (the telescope). The collimator houses an adjustable slit, able (b) Study of emission spectra of metals using constant deviation spectrometer When it is used to photograph the spectrum it is called spectrograph.Therefore, to measure wavelengths using a prism, a calibration graph of the angle of deviation versus wavelength must be constructed using a light source with a Manufacturer of Constant Deviation Spectrograph – He-Ne Laser, Diode Laser, Nuclear Physics Instrument offered by Manju Scientific, Delhi. Aim: To verify the Hartmann Dispersion Formula and to determine the dissociation energy of I2 molecule using a constant deviation spectrometer. Apparatus. 0000000662 00000 n Theory: Cauchy's equation is an empirical relationship between has Emission spectra of metals using constant deviation spectrometer The experiment is repeated by rotating the analyzer through 10o degree To verify Hartmann's dispersion formula using a constant deviation spectrometer.