Home
Class 12
BIOLOGY
The ascent of mercury column in atmomete...

The ascent of mercury column in atmometer proves

A

Transpiration pull

B

Cohesion-tension theory

C

Capillary theory of ascent of sap

D

Atmospheric pressure theory of ascent of sap

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

The cross-sectional area of the left limb of a U-tube is one-third of that of its right limb. It contains some mercury. The empty space in the left limb measures to 40 cm. If water is poured to fill it up, then find the rise of the mercury column in the right limb. (Specific gravity of mercury = 13.6)

Density of mercury is---

According to the definition of International ohm, the resistance of a uniform column of mercury of length 106.3 cm and of mass 14.4521 g . When kept is melting ice, becomes 1 Omega (i) IF the temperature coefficient of resistance of mercury be 9 times 10^(-4^@)C^-1 . then what will be the resistance of that mercury column in boiling water? (ii) IF the density of mercury be 13.59 g. cm^-3 and its coefficient of volume expansion be 1.8 times 10^(-4^@)C^-1 . then what will be the resistivity of mercury at the temperature of boiling water.

Mercury poisoning in water causes-

What are the forces that maintain the continuity of water column during ascent of sap.