NURSING ANM AND GNM

NURSING EXAM QUESTIONS

MICROBIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Mounted two lenses in a tube to produce the first compound microscope.
A
Robert Hooke
B
Anton Van Leeuwenhoek
C
Hans and Zacharias Janssen
D
Ernst Ruska
Explanation: 

Detailed explanation-1: -A Dutch father-son team named Hans and Zacharias Janssen invented the first so-called compound microscope in the late 16th century when they discovered that, if they put a lens at the top and bottom of a tube and looked through it, objects on the other end became magnified.

Detailed explanation-2: -Three Dutch spectacle makers Hans Jansen, his son Zacharias Jansen, and Hans Lippershey has first developed a compound microscope in 1590 using two lenses to observe maximum magnification.

Detailed explanation-3: -Invention of the Microscope Over four hundred years ago, two Dutch spectacle makers, Zacharias Janssen and his son Hans, were experimenting with several lenses in a tube. They discovered that nearby objects appeared greatly enlarged, or magnified. This was the forerunner of the compound microscope and of the telescope.

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