lens from virtual image at a distance of 60 cm from lens on right side if lens is converging lens with focal length 40 cm then find the object position
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lens from virtual image at a distance of 60 cm from lens on right side if lens is converging lens with focal length 40 cm then find the object position
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Answer:-40 CM
Explanation:
If the lens is a converging lens with a focal length of 40 cm and the virtual image is located at a distance of 60 cm from the lens on the right side, we can use the lens equation to find the object position.
The lens equation is:
1/u + 1/v = 1/f
Where u is the object distance, v is the image distance, and f is the focal length.
Given that v = -60 cm (the image is on the right side of the lens and virtual image is negative) and f = 40 cm
we can substitute these values into the lens equation and solve for u:
1/u + 1/-60 = 1/40
-1/u = 1/40 - 1/-60
-1/u = -3/120
u = -40 cm
Therefore, the object is located at a distance of -40 cm from the lens. This means that the object is on the left side of the lens.
It's important to note that in this case, the object is real and inverted, because the image is virtual, meaning it can't be projected on a screen, but can be seen and can be used to observe the object.