Question

Suppose we wish to obtain the real image of a distant tree. Explain two possible ways in which we can do it.

Answer 1

Explanation

The real image is formed by

1. Convex lens
2. Concave mirror

First possible way:

1. A convex lens and a screen can be used to get the real image.
2. A convex lens can only provide a real image when the object is far away, the convex lens will produce a real image of a distant tree on the screen.

Second possible way:

1. A concave mirror and a screen can be used to get the real image.
2. We know that a concave mirror produces a real image only when an object is at a distance from it.
3. So the concave mirror will produce a real image of a distinct tree on the screen.

Hence, by the above two methods, we get a real image