Question

QUESTION:

1. State two differences between pinhole cameravimages and shadows.
2. Give one instance of a nature 'pinhole camera'
3.Why are the shadow of birds flying high up in the sky not seen on the ground?




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Answer 1

Answer:

A pinhole camera image is a real image formed at the screen when light from an object is passed through a pin hole. ... But a shadow is an area with no light formed because of an obstruction to the path of light.

2. A shadow forms is erect while an image cast of screen by a pinhole camera is inverted.

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Soap bubble in air is not an example of natural pin hole camera.

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Birds flying high in the sky do cast their shadow but because they are shading an area that is very tiny, the shadow is not visible. The higher the bird flies, the smaller the shadow it casts. Answer: For the shadow to fall near you, the bird or plane would have to be close to the line directly from you to the sun.