Question

CBSE 10th question what is magnification​

Answer 1

Biological magnification often refers to the process whereby certain substances such as pesticides or heavy metals move up the food chain, work their way into rivers or lakes, and are eaten by aquatic organisms such as fish, which in turn are eaten by large birds, animals or humans.

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Answer 2

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Magnification is the ratio of the image

distance to the object distance. ... If the

magnification becomes negative, it implies

the image is inverted. The expression for

angular magnification of a microscope is.

Here, fo is the focal length of the objective

lens and fe is the focal length of the

eyepiece lens.

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Magnification is the process of enlarging

the apparent size, not physical size, of

something. This enlargement is quantified

by a calculated number also called

"magnification". When this number is less

than one, it refers to a reduction in size,

sometimes called minification or de

-magnification.