Question

31. Explain why, we often see bright circular patches of light on the ground under a tree on a sunny day.
32) State the characteristics of images formed in a pinhole camera​

Answer 1

Answer:

1.

The bright circular patches of light under the tree is called pinhole images, the source of the light is the sun , the dry porous leaves and the gaps between the leaves acts as the screen. And the phenomenon is known as diffraction of lights.

2.

The image in a pinhole camera is inverted (upside down) as compared to the object. ... The image in a pinhole camera can be smaller than the object, equal to the object or bigger than the object (depending on the distance of object from the pinhole camera).

Answer 2

1. The bright circular patches of light under the tree is called pinhole images, the source of the light is the sun, the dry porous leaves and the gaps between the leaves acts as the screen, and the phenomenon is known as diffraction of lights.

2. The image is real, inverted and small in size. Answer: The characteristics of an image produced by a pinhole camera The image produced by a pinhole camera is usually smaller than the object and appears to be inverted on both the vertical and horizontal axis when compared to the actual object