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The instrument used to view very small objects that cannot be seen with the naked eye is called?
A. Telescope
B. Microscope
C. Periscope
D. Stethoscope
Correct Answer Is Option = Microscope
Notes / Explanation
The instrument used to view very small objects that cannot be seen with the naked eye is called a microscope, and it is one of the most important tools ever developed for the study of science. The human eye, although remarkable in many ways, is limited in its ability to see very small things, and there is a vast world of tiny objects and organisms that remain completely invisible to the unaided eye. The microscope was invented to overcome this limitation, and it works by using one or more lenses to magnify the image of a small object so that it appears much larger than its real size, allowing fine details to be seen clearly. When a tiny object is placed under the microscope and viewed through its lenses, features that would otherwise be impossible to detect become visible, and the object can be studied in great detail. The invention and development of the microscope had a revolutionary effect on the progress of science. It allowed scientists to discover the existence of an entire world of microscopic life, including the tiny single-celled organisms that live in water, soil and the bodies of living things. It made it possible to see that all living things are made up of cells, which became one of the foundations of biology. The microscope also allowed scientists to discover the existence of the minute organisms responsible for many diseases, which transformed the understanding of illness and led to enormous advances in medicine and public health. In the modern era, microscopes have become extremely powerful, and some advanced types are able to magnify objects to an extraordinary degree, revealing structures far too small to be seen with ordinary instruments. Microscopes are used in many fields, including biology, medicine, chemistry, geology, materials science and forensic investigation, and they are essential tools in laboratories, hospitals, universities and research centres throughout the world. They are used to examine cells and tissues, to diagnose diseases, to study the structure of materials and to investigate evidence. The microscope therefore stands as one of the great instruments of discovery. For PPSC and other competitive examinations, the key points to remember are that a microscope is used to view very small objects that cannot be seen with the naked eye, that it works by using lenses to magnify the image, and that its invention led to major discoveries such as microscopic organisms, the cellular structure of life and the causes of many diseases.
