If AB is an object and A'B' is an image formed, then match the following.
1 - C, 2 - A, 3 - B, 4 - D
1)
⇒Since image height = object height,
⇒So object must be kept at 2F1.
2)
⇒Since image height < object height so
⇒The object must be kept beyond 2F1
3)
⇒ Since image and object is at same side. So, the only possibility is object kept between focus and optical centre.
4)
⇒Since image height > object height and image is inverted.
⇒So, object must be kept between 2F1 and F1.