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Answer:
can't see full image!
Is it differenciate between image and a shadow?
if it is'
Image is actually a virtual reflection which can be created from different lenses and mirrors,with the help of the reflection or refraction phenomenons of the light rays. On the other hand, Shadow is a patch of darkness on a surface which is created by the blocking of the light rays by an solid opaque object.
Why does an austronauts shadow fall on moon?
Because the light of the sun also reaches on the surface of the moon so the shadow of the astronaut can be formed.
Principles of pinnhole camera
When the shutter is opened, light shines through to imprint an image on photographic paper or film placed at the back of the camera. Pinhole cameras rely on the fact that light travels in straight lines – a principle called the rectilinear theory of light. This makes the image appear upside down in the camera.
Image formed by pinholecamera
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. The image itself can be called "real" because it is visible on the screen.
picture is inverted
