You are given a graduated cylinder and are asked to determine how much liquid is in the container. First, you put the cylinder on a flat surface. What will you do then to get the most accurate reading?

Select one:
a. Tilt to the side to match up to the lines on the side.
b. Dump out some to reach the nearest large number.
c. Hold up the cylinder to above the eye level to read the meniscus.
d. Get down on eye level to read the bottom of the meniscus.



Answer :

In order to get the most accurate reading of the liquid in a graduated cylinder, you need to properly read the meniscus, which is the curve formed by the liquid at the surface level.

Here are the steps you should follow:

1. Place the graduated cylinder on a flat surface: This ensures that the liquid inside is level and not skewed by any tilting.

2. Get down on eye level to read the bottom of the meniscus: By positioning your eyes level with the meniscus, you can accurately observe the lowest point of the curve. This is essential because the surface tension of the liquid causes the meniscus to form a curve, and the true measurement is read at the bottom of this curve.

Therefore, the correct step to get the most accurate reading of the liquid level in the graduated cylinder is to:

d. Get down on eye level to read the bottom of the meniscus.

This method avoids any parallax errors and gives you the most precise measurement of the liquid in the cylinder, which in this case is 4.