what is magnification? and give its equation
Answers
Answer:
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.
The magnification equation states that M = Hi/Ho = - Di/Do, where M is the magnification, Hi is the height of the image, Ho is the height of the object, Di is the distance from the lens to the image and Do is the distance of the object to the lens.
Magnification
It can be defined as the extent to which the image appears bigger or smaller in comparison to the object size.
It is represented as the ratio of the height of the image to the ratio of the height of the object. Magnification is denoted as the letter ‘m’. Where,
Magnification (m) = h/h’
And h’ is the image height and h is the object height.
Magnification can also be related to the image distance and object distance; therefore it can also be written as:
m = -v/u
Where v is the image distance and u is the object distance.
Hence, the expression for magnification (m) becomes:
m = h’/h = -v/u
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