Question

measuring atomic spectra

1. What type of light source produces a continuous spectrum, when its light is passed through a prism or a diffraction grating? A bright-line spectrum? 2. What event within an atom does an individual line in a bright-line spectrum correspond to? 3. When experimentally determining the wavelength of a spectral line, how can you tell (mathematically) that the displacement angles have been measured and recorded correctly? 4. A student measures the left and right displacement angles of a certain spectral line as 159.44° and 200.56°, respectively. The instructor announced that the grating spacing, D, was 1996 nm. a) Calculate 6, the average displacement angle, using Equation 2. b) Calculate 2, the wavelength of the spectral line.

Answer 1

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