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LENS Increase

The tube is attached to a tripod. For tripod mounted also the stage in which center there is a hole underneath it and a mirror. Using a light microscope, one can see an image of an object illuminated with the help of this mirror. To find out how increases image using a microscope, it is necessary to multiply the number shown on the eyepiece, the amount identified on the used object. For example, if the eyepiece gives 10x and 12x lens, the overall increase in the 10×12 = 120 times. RULES WITH MICROSCOPE Put microscope stand to their distance of 5-10 cm from the edge of the table. In opening the stage mirror direct light. Place the cooked product on the stage and secure slide fasteners.

Using a screw, gently lower the tube so that the bottom edge of the lens was at a distance of 1-2 mm of the drug. In the eyepiece, see with one eye, without closing and not zazhmurivaya another. Looking through the eyepiece, with screws slowly raise the tube until a clear image of the object. After work, remove the microscope in the case. Microscope – delicate and expensive instrument: to work with them should be carefully and strictly follow the rules. The device of the microscope and how to work with them 1. Examine the microscope. Find the tube, the eyepiece lens, a tripod with the stage, mirror screws.

Find out how important each part. Determine how many times the microscope magnifies the image of the object. 2. Learn the rules of using a microscope. 3. Work out a sequence of actions when dealing with a microscope. (7J cells. Magnifier. MICROSCOPE: HOOD, eyepiece, LENS, TRIPOD 1. What magnifying devices do you know? 2. What is the magnifying glass and some increase it for you? 3. How does a microscope? 4. How do I know what makes an increase in the microscope? Learn the rules of working with a microscope. GO light microscopy two lenses were invented in the XVI century. In a SHHUI. Dutchman Antoni van Leeuwenhoek constructed an improved microscope, giving an increase of up to 270 times, and in the XX century. oyl invented the electron microscope, zoom in and scores Hundreds of thousands of times.

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