Question

I have a projector that takes small pictures and projects them onto a large screen so that a large group of people can view the pictures.
What kind of lens can be used to create the images viewed on the screen, and where should the pictures be place in relation to the lens and its focal length, f?

• A. Types of Lens - convex, Location of Picture Relative to Lens in Terms of I - closer than f to lens
• B. Types of Lens - concave, Location of Picture Relative to Lens in Terms of I - between f and $2f$ away from lens
• C. Types of Lens - convex, Location of Picture Relative to Lens in Terms of I - between f and $2f$ away from lens
• D. Types of Lens - concave, Location of Picture Relative to Lens in Terms of I - more than $2f$ from lens
• E. Types of Lens - convex, Location of Picture Relative to Lens in Terms of I - more than $2f$ from lens

Answer 1

Answer: (A)

Types of Lens - convex, Location of Picture Relative to Lens in Terms of I - closer than f to lens

When an object is placed between the pole and focus of the convex lens, then lens forms a virtual but erect and enlarged image of the object.

Hence option A is correct.