A real image is formed with a converging lens.Which of the following actions will move the image point farther from the lens?
A)decrease the object distance
B)increase the radius of curvature
C)decreases the index of refraction
D)All are correct.

Question

Quizplus · Accepted Answer

All the given actions will move the image point farther from the lens. Decreasing the object distance makes the image form further away according to the lens equation. Increasing the radius of curvature effectively makes the lens weaker, thus moving the image farther away. Decreasing the index of refraction also makes the lens less powerful, requiring the object to be closer to form an image at a particular distance, or conversely, moving the image farther away for a fixed object distance.

A Real Image Is Formed with a Converging Lens