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Q1. An argon-ion laser emits a blue-green beam of light with a wavelength of 488nm in a vacuum. Compute the energy in joules for the two energy states for the atomic transition which produces this light? Q2. A pulsed laser has an average output power of 12W. Each pulse consists of light at wavelength 400nm and has 16ms duration. Compute the number of photons that are emitted in a single pulse? Q3. What is the wavelength of the x-ray emitted from a Tungsten target (Z=74) when an electron moves from the M-shell (n=3) to the K-shell (n=1). Q4. If you wish to produce 45.0 nm x-rays in the laboratory, what is the minimum voltage you must use in accelerating the electrons?
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