A camera has a lens with a focal length of 23.1 cm. When an object is placed 3.6

Question

A camera has a lens with a focal length of 23.1 cm. When an object is placed 3.61 meters away is being photographed, how far from the film should the lens be placed? Give your answer in cm. When an object is viewed through a magnifying glass, an object 6.7 cm high appears as an upright image 13.1 cm high. What is the magnification? There are no units in this problem, since magnification is simply a number. An object is initially placed on the optical axis 26.1 cm to the left of a convex lens that has a focal length of 12.6 cm. The image is real and inverted. If the object is moved toward the lens to a point 7.9 cm away, what is the new image distance (location on the optical axis)?

Explanation / Answer

simply use the lens and mirror formula with appropriate sign convention

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.