Solve the all part of the given question:
Question: A certain digital camera having a lens with focal length 7.50cm focuses on an object 1.75m tall that is 4.30 m from the lens.
Part I: How far must the lens be from the photocells?
Part II: Is the image on the photocells erect or inverted? Real or virtual?
Part III: How tall is the image on the photocells?
Part IV: A SLR digital camera often has pixels measuring 8.00uM 8.00uM . How many such pixels does the height of this image cover?
Show me the each step of above parts of question.