Question

На предметное стекло микроскопа нанесли каплю воды, а затем прикоснулись к ней кисточкой с акварельной краской. Подкрашенную каплю закрыли покровным стеклом и разместили на предметном столике микроскопа а) Что является в эксперименте броуновской частицей? б) Опишите возможную картину броуновского движения частиц краски

Answer 1

A) частицы акварели                                                                                             б) беспорядочно,с места на место

Answer 2

Experiment with Brownian Motion

In the experiment described, a drop of water was placed on the specimen glass of a microscope, and then a brush with watercolor paint was touched to it. The colored drop was covered with a cover glass and placed on the stage of the microscope. The questions are:

a) What is considered a Brownian particle in this experiment? b) Describe the possible pattern of Brownian motion of the paint particles.

To answer these questions, let's consider the concept of Brownian motion and how it relates to the experiment.

Brownian Motion

Brownian motion is the random movement of microscopic particles suspended in a fluid (liquid or gas) due to collisions with the molecules of the fluid. This phenomenon was first observed by the botanist Robert Brown in 1827.

In the experiment described, the watercolor paint particles suspended in the water droplet on the microscope slide can be considered as Brownian particles. These particles undergo random motion as a result of collisions with water molecules.

Possible Pattern of Brownian Motion

The motion of the paint particles in the water droplet can be described as a random, erratic movement. The particles will exhibit continuous, rapid, and irregular motion in all directions. This motion is a result of the random collisions between the paint particles and the water molecules.

The paint particles will move in a zigzag pattern, changing direction frequently due to the random nature of the collisions. The particles will also vary in speed, with some moving faster and others moving slower. Over time, the particles may spread out and disperse throughout the water droplet.

It is important to note that the specific pattern of Brownian motion observed in the experiment may vary depending on factors such as the concentration of paint particles, temperature, and viscosity of the fluid.

In conclusion, in the described experiment, the watercolor paint particles suspended in the water droplet can be considered as Brownian particles. These particles exhibit a random, erratic motion known as Brownian motion, characterized by continuous, rapid, and irregular movement in all directions.