a simple model for how a peephole works is sh...
a simple model for how a peephole works is shown here. these peepholes are common in homes and hotel rooms, and they provide the viewer on the inside with a larger image to see who is at the door. at the same time, the viewer from the outside cannot get an accurate image of anything happening on the inside of the door. in order to correctly refine this model, how should letters a and b be labeled? a both a and b are convex lenses. b both a and b are concave lenses. c a is a convex lens and b is a concave lens. d a is a concave lens and b is a convex lens.
Answer
# Explanation:
## Step1: Understand peep - hole function
A peep - hole typically has a combination of lenses to provide a wide - angle view for the inside viewer and limit the outside view.
## Step2: Recall lens properties
A concave lens diverges light rays and a convex lens converges light rays. The outer part (facing outside) of a peep - hole is a concave lens to widen the field of view for the inside viewer, and the inner part (facing inside) is a convex lens to focus the diverging rays onto the eye of the inside viewer.
# Answer:
D. A is a concave lens and B is a convex lens.