an object is placed in between the optical centre and focus of a thin convex lens. what is the nature of image of the object?
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114
the image is virtual and erect , enlarged , formed at the same side as object is .
Answered by
154
Hi there!
[ Refer the Attachment ]
When an object is placed between the principal focus and optical centre of a convex lens, then a parallel ray of light AO passes through the focus after refraction along the direction OX.
While the other ray AC pass through the optical centre and goes straight without any deviation along the direction CY.
But, in this case the two refracted light rays i.e. OX and CY are diverging away from one another, so these cannot intersect each other to form a real image on the right side of the convex lens.
Thus, the refracted rays OX and CY are extended backward by dotted lines. On extending back, these rays appear to intersect at point A’.
Hence,
The image A’B’ formed in this case is a Virtual image which is formed on the same side of the lens behind the object. Also the image formed is Erect and Highly Enlarged.
Hope it helps!
[ Refer the Attachment ]
When an object is placed between the principal focus and optical centre of a convex lens, then a parallel ray of light AO passes through the focus after refraction along the direction OX.
While the other ray AC pass through the optical centre and goes straight without any deviation along the direction CY.
But, in this case the two refracted light rays i.e. OX and CY are diverging away from one another, so these cannot intersect each other to form a real image on the right side of the convex lens.
Thus, the refracted rays OX and CY are extended backward by dotted lines. On extending back, these rays appear to intersect at point A’.
Hence,
The image A’B’ formed in this case is a Virtual image which is formed on the same side of the lens behind the object. Also the image formed is Erect and Highly Enlarged.
Hope it helps!
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