Question

Match the following object positions with their respective image positions.

• A. Image at 2$F_2$
• B. Between $F_2$ 2$F_2$
• C. Virtual image

Answer 1

When the object is kept at 2$F_1$, we get an inverted image which is of same size of the object at 2$F_2$.
⇒Since image height > object height and image is inverted.

⇒So, object must be kept between 2$F_1$ and $F_1$.

⇒Since image height = object height,

⇒So object must be kept at 2$F_1$.

⇒ Since image and object is at same side. So, the only possibility is object kept between focus and optical centre.