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Q. Suppose a certain atom has four energy levels assuming that all transitions between levels are posible, how many spectral lines will this atom exhibt? Which transition corresponds to the highest energy ligh emitted? Which corresponds to the lowest energy light emitted?

Q. A patients blood pressure is measured as 140 / 80, measured in level with the heart. What would you expect the blood pressure to be at the top of the head if there is a 45cm height difference in the two points. Density of blood is 100kmm-3. Give answer in both mmHg and kPa.

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