Answer
The three qualities of an effective microscope are:
1. Magnification: It makes the object appear larger than its actual size by using lens or series of lenses.
2. Resolution: Resolution is the clarity of the image produced by microscope. It contributes in providing detailed image of the specimen.
3. Contrast: It is the difference in light intensity between object under study and background. It also contributes in making a detailed and clear image of the object.
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