A student wanted to find out the rate of transpiration using a potometer as shown.
The student was told to work out a value for transpiration using the units $m{m^3}\,,\,{m^{ - 2}}$ and $hou{r^{ - 1}}$.
Which measurements would the student need to take?
1 )
volume of water in the reservoir, length of the capillary tubing, temperature and how many leaves are on the shoot
2 )
volume of water in the reservoir, radius of the capillary tubing, time and surface area of the leaves
distance air bubble moves, radius of the capillary tubing, time and surface area of the leaves
4 )
distance air bubble moves, length of the capillary tubing, temperature and how many leaves are on the shoot
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