Subject: Physics   / General Physics
Question
1. A piece of charcoal used for cooking is found at the remains of an ancient campsite. A 0.73 kg sample of carbon from the wood has an activity of 2330 decays per minute. Find the age of the charcoal. Living material has an activity of 15 decays/minute per gram of carbon present and the half-life of 14C
is 5730 y. Answer in units of y
2. The asymptotic wavelength (?limit) for the Brackett series is 1500 nm. What is the wavelength of the first emission line?
Answer in units of nm
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3. asymptotic wavelength (?limit) for the Lyman series is 91.1 nm. What is the wavelength of the third emission line?
Answer in units of nm
