Which of the following is based on the study of the shadow cast by the sun?
Answers
Answer:
sun dial
Explanation:
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Answer:
Light
On your way to school, you can see so many things around you, you see the buildings, car, trees, scooters and many more. Have you ever imagined how can you see these things? What enables us to see things around us?
During the day we get sufficient amount of light from the sun and so we can see the objects clearly. But when you enter a dark room, will you be able to see the objects around you? NO! Because there is no light present there.
Yes, we can see things in dark only when we switch ON the light. We can see the chairs, table, T.V, utensils and everything around you. Light is one of the important things that is required to see objects around us. It is the source of invisible energy which gives us the sensation of sight.
The different types of light we see around us is the light from sunlight, light from the bulbs, torch, the traffic lights, the light from the candle, light from the laser and many more. These are different from one another but helps us to view things around us. Not all the objects can produce lights. Such objects are categorized into two types.
Luminous object
Illuminated object
Luminous Object
Luminous objects have the ability to produce their own light. Sun is an example of a luminous object. Sun produces its own light.
Browse more Topics under Light Shadows And Reflections
Pinhole Camera and Reflection of Light
Illuminated Object
Illuminated objects do not produce their own light, but still, we can see them. But how are these possible? What happens is these objects reflect the light which comes from the luminous objects when light falls on them. Light falls on all the objects but not all the objects forms shadow. If you take a ball, its shadow is formed.
But if you take the same ball in the dark room, you cannot see the shadow of the ball. This is because there is no light present in the dark room. When we see through the glass window we can see the things outside the window, this is also due to the presence of light.