Question

ing with a grad owing graduated cylinders and determine the image of a graduated cylinder with 200 ml, 160, 120, 80, 40 ml markings, liquid meniscus visible 2. ______

Explanation:

Step1: Identify the scale

The graduated cylinder has major marks at 40, 80, 120, 160, 200 mL. Between 40 and 80, there are several minor divisions. Let's find the value of each minor division. The difference between 80 and 40 is \( 80 - 40 = 40 \) mL. Count the number of minor divisions between 40 and 80. From the diagram, between 40 and 80, there are 20 small divisions (since from 40 to 80, the number of intervals: let's see, 40 to 80 is 40 mL, and if we look at the marks, between 40 and 80, the mid - mark is 60? Wait, no, let's check the liquid level. The liquid level is at a mark. Wait, looking at the cylinder, the mark for 40, then some lines, then the liquid level. Wait, actually, between 40 and 80, the major marks are 40, then a mark, then 80? Wait, no, the diagram shows: 40, then some lines, then 80. Wait, maybe the interval between 40 and 80 is 40 mL, and the number of small divisions between 40 and 80 is 20? Wait, no, let's look at the liquid level. The liquid level is at 60 mL? Wait, no, wait the marks: 40, then a line, then 80? Wait, no, the user's diagram: the graduated cylinder has marks at 40, 80, 120, 160, 200. Between 40 and 80, how many small divisions? Let's see, from 40 to 80, the difference is 40 mL. If we count the lines, between 40 and 80, there are 20 small lines? Wait, no, maybe the scale is such that between 40 and 80, the mid - point is 60. Wait, the liquid level is at 60 mL? Wait, no, let's check again. Wait, the 40 mark, then a series of lines, then the liquid level, then 80. Wait, maybe each small division is 2 mL? Wait, no, 40 to 80 is 40 mL. If there are 20 divisions between 40 and 80, then each division is \( \frac{40}{20}=2 \) mL. But the liquid level is at 60 mL? Wait, no, looking at the diagram, the liquid level is at the mark that is 20 mL above 40? Wait, no, 40 + 20 = 60? Wait, maybe the correct reading is 60 mL. Wait, let's see: the 40 mark, then 10 small divisions (if each is 2 mL) would be 60. Wait, maybe the scale is such that between 40 and 80, there are 20 small divisions, so each is 2 mL. But the liquid level is at 60 mL. Wait, no, maybe I made a mistake. Wait, the graduated cylinder's scale: 40, then a line, then 80. Wait, no, the user's diagram: the numbers are 40, 80, 120, 160, 200. The liquid is between 40 and 80. Let's count the number of intervals between 40 and 80. From 40 to 80, the distance is 40 mL. If we look at the lines, between 40 and 80, there are 20 small lines (since 40 divided by 20 is 2). So each small line is 2 mL. The liquid level is at 40 + 10*2 = 60 mL? Wait, no, maybe the mark is at 60. Wait, actually, in a graduated cylinder, the meniscus (the curved surface of the liquid) is read at the bottom of the curve. Looking at the diagram, the liquid level is at 60 mL. Wait, no, let's check again. The 40 mark, then 10 small divisions (each 2 mL) would be 60. So the volume is 60 mL.

Step2: Confirm the reading

The graduated cylinder has major刻度 (marks) at 40, 80, etc. The liquid level is at the mark that is halfway between 40 and 80? Wait, 40 and 80 are 40 mL apart. Halfway is 60 mL. So the volume of the liquid in the graduated cylinder is 60 mL.

Answer:

60 mL