Why is object placed between 2f1 and f1 in a convex lens projector ?

Asked by pras.rangi | 26th Jul, 2021, 09:06: AM

Expert Answer:

In convex lens projector, we have to obtain enlarged,real and inverted image. 
The image obtained by it must be formed at large distance on the screen. 
When the object is placed between 2F1 and F1 in front of convex lens, the image formed is enlarged, real and inverted and is formed beyond 2F1. 
Thus, to obtain the desired image through convex lens projector the object is placed between 2F1 and F1. 

Answered by Shiwani Sawant | 26th Jul, 2021, 11:05: AM