in order to obtain a magnification of -2.0 with a concave mirror of focal length 12 cm and object will have to be placed at a distance
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The object should be placed at a distance of 24 cm to from the lens (on the left side).
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Given:
Magnification of -2.0 with a concave mirror of focal length 12 cm is required.
To find:
Object distance ?
Calculation:
In case of mirrors, magnification is written as:
Now, applying mirror formula:
So, object distance is 18 cm before the mirror.
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