How two demerits of a simple barometer are removed from in a Fortin barometer?
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1. The trough is enclosed in brass case so that impurities can fall in the mercury
2. There is a graduated scale near the slit to tell the height of mercury in barometer.
Hope this helps :)
2. There is a graduated scale near the slit to tell the height of mercury in barometer.
Hope this helps :)
Chakshu290703:
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