To magnify very small objects
A light microscope.
A simple microscope has only one lens and is used for magnifying small objects, while a compound microscope has multiple lenses and is used for magnifying very small objects with higher magnification and resolution.
simple or dissecting microscope -
A compound microscope consists of several lenses operating together, whereas a simple microscope is one lens, like a magnifying glass. A compound microscope gives higher magnification and also better resolution than a simple microscope.
The microscope used to discover bacteria was the light microscope, specifically the compound microscope. Anton van Leeuwenhoek, a Dutch scientist, first observed bacteria through a simple microscope he created in the late 1600s.
Mirror and candle :]
It was an extremely simple refraction microscope
The first microscope was called the "simple microscope" or "single lens microscope". It was developed in the late 16th century and consisted of a single convex lens used to magnify small objects.
compound microscope
The first microscope was a simple handheld magnifying glass, known as a "simple microscope." It had a single convex lens and was used to magnify small objects. The compound microscope, with two lenses for greater magnification, was developed later.
Anton van leeuwenhoek
Yes, two lenses can make a simple microscope. More are usually used. A magnifying glass - one lens - is the simplest microscope.