Question

Предложите способ определения среднего диаметра зерна пшена, какие приборы для этого понадобятся?

Answer 1

Взять десяток зёрен, уложить плотно вдоль линейки. Разделить размер на количество зёрен

Answer 2

Determining the Average Grain Diameter of Wheat

To determine the average diameter of wheat grains, you can use a method called "grain size analysis." This involves measuring the diameter of multiple wheat grains and calculating the average. Here's a suggested method and the instruments you will need:

1. Method: - Sample Preparation: Take a representative sample of wheat grains from the bulk. - Grain Measurement: Use a microscope to measure the diameter of individual grains. Place the grains on a glass slide and cover them with a cover slip. Then, observe and measure the diameter of each grain using the microscope. - Calculation: Once you have measured the diameter of multiple grains, calculate the average diameter by summing up all the measurements and dividing by the total number of grains measured.

2. Instruments Needed: - Microscope: A compound microscope with a calibrated eyepiece reticle can be used to measure the diameter of the grains accurately. - Glass Slides and Cover Slips: These are used to prepare the samples for observation under the microscope. - Calibrated Eyepiece Reticle: This is a small ruler-like tool that fits into the eyepiece of the microscope and allows for measurements to be taken directly through the microscope.

By following this method and using the suggested instruments, you can accurately determine the average diameter of wheat grains.