Question

2. The instrument could measure the
(a) length (b) feelings (c) heart
of plants.
(d) growth​

Answer 1

Explanation:

Auxanometer is an instrument used to measure the growth of the plant in terms of length. In order to measure the growth, a thread is passed over a pulley ad one end of thread is tied to the tip of plant and other end is tied to the weight. There is a needle in the centre of the pulley which shows deflection as the growth of a plant. The deflection can be read on the graduated arc to know the increase in length of the plant.

A manometer is a device used to measure pressure and a simple manometer consists of a U-tube filled with a liquid mercury of high density.

Answer 2

Answer:

growth

Explanation:

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