What should give narrower spectral lines

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Reference no: EM131353392

1. (a) Calculate (l/w) and compare the result with 1/ (w).

b) Show that the number of particles striking a unit area of a wall per unit time is equal to

P/√(2ΠmkT)

2. The Doppler broadening of a spectral line increases with the rms speed of the atoms in the source of light. What should give narrower spectral lines: a mercury-198 lamp at 300 K or a krypton-86 lamp at 77 K?

Reference no: EM131353392

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