There are a variety of organisms on our planet. Some are extremely large like the blue whale, whereas some are very tiny and cannot be seen with our naked eye like Amoeba. Such extremely tiny organisms known as microorganisms can be seen with the help of an instrument called microscope. The study of such microorganism is called microbiology.
MICROSCOPE: A microscope is an instrument that magnifies smaller objects with the help of lenses. It is also known as a compound microscope. The different parts of a microscope are shown in the figure. The object to be viewed is generally referred to as the specimen. A thin sheet of glass called a microscopic slide is used to hold a small sample of the specimen. A second, much thinner, sheet of glass called cover slip is placed over the sample. The cover slip protects the microscope’s objective lens by preventing it from coming into contact with the specimen sample. It also helps to create an even thinness for the sample.The basic steps to use a microscope are as follows.
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Which of the following are correct : (a) Extremely tiny organisms known as microorganisms can be seen with the help of an instrument called microscope. (b) A microscope is an instrument that magnifies smaller objects with the help of lenses. It is also known as a compound microscope. | |||
Right Option : C | |||
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Growth of knowledge about mico-organism is closely related with the advancement of ______________________ | |||
Right Option : C | |||
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A thin sheet of glass called a ________________________ is used to hold a small sample of the specimen. | |||
Right Option : A | |||
View Explanation |
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