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A magnifying lens is an optical instrument that permits you to see objects amplified. A few magnifying instruments are strong to the point that you can see things that the human eye can't see alone like cells, fiery debris, and snowflakes. A straightforward magnifying lens is one that uses stand out lens to amplify, for example, an amplifying glass. A compound magnifying lens utilizes two or more lenses to amplify the example. The magnifying instrument you have at school likely uses a blend of lenses to amplify, yet for their exploration a few researchers have magnifying lens that utilization gadgets to amplify. They are called electron magnifying lens. There are numerous different sorts of magnifying instruments including ones that utilization x-beams, gasses, and lasers. Magnifying lens permit us to see what makes individuals wiped out and how life forms work. We can concentrate eager for advancement up of rocks, and even liquids. For instance, we can see precisely what is in a glass of drinking water.

Parts of a microscope:

a) Eyepiece: The Eyepiece is the top part. it is the lens to look through to see specimen.    

b) Arm: It’s the large metal band attaching the base to the lens and eyepiece.  When carrying a microscope, use one hand to hold the Arm and the place the other under the base 

c) Fine Adjustment Knob: The Fine Adjustment Knob is the smaller round knob on the side of the microscope used to fine-tune the focus of your specimen after using the coarse adjustment knob.   

d) Coarse: Adjustment Knob: Of the two knobs on the side of a microscope, it is the largest.   It is used to focus on the specimen; it may move either the stage or the upper part of the microscope. Always focus with the coarse knob first. 

e) Objective Lenses: Most microscopes have 2, 3, or more lenses that magnify at different powers.   Always start with the lowest power and work your way up to the strongest when examining a specimen. The shortest lens is usually the lowest power.   

f) Stage: Where the sample or specimen is placed for examination is called stage. 

g)  Iris Diaphragm: It’s what allows you to control the amount of light on the specimen that comes through the stage.

h)  Light Source: It can be a bulb or a mirror, and is usually found near the base of the microscope shining up through the stage.   

i) Aperture: It’s the hole in the stage that allows light through for better viewing of the specimen.