Question

Betty wants to take a picture of the Empire State building. She is at the foot of the building with her camera facing up. Which kind of lens should she use in her camera so that the entire building remains in focus and is in a single plain?
Betty should use a lens. It is also known as lens.

Answer 1

Betty wants to take a picture of the Empire State building. She is at the foot of the building with her camera facing up. Concave, kind of lens should she use in her camera so that the entire building remains in focus and is in a single plain

Explanation:

A convex lens cannot produce a real image. By using a concave mirror one can produce images which are usually beyond the focal point. When a concave lens is used, the image of object can be captured but the image will be in a smaller size.

However, the image is not upside down, thus keeping it making it a normal image. Here, Betty must use a concave lens because Empire State Building is a tall building and for capturing the entire image she must use a lens such that the entire image is featured in the lens. This is why she must use a concave lens.