Class 6 Science NCERT Solutions-Light and Shadow
This article carries short, easy, and crisp notes about “Light and Shadow”
Light and Shadow
Light: Light is a form of energy which helps us in seeing objects. When light falls on an object, part of the light gets reflected. The reflected light enters our eyes and we are able to see an object. Light always travels in a straight line, and its rays represent the path of light objects.
Non-luminous object: An object which does not emit light on their own is called non-luminous object, the light emitted by luminous objects falls on non-luminous objects, and then bounces back to our eye, which enables us to see non-luminous objects. Examples of non-luminous objects are the moon, a cupboard, a pen, a book, a wooden box, and the chair.
Luminous Object: An object which emits light on their own is called a luminous object. The light produced by luminous objects enables us to see things around us. Examples of luminous objects are the Sun, bulb, tube light, a lit candle, a bonfire and a lit torch.
Translucent Object: An object that allows only a part of the light (partial passage of light)incident for them to pass through it is called a translucent object. We can see through a translucent object, but the vision would be faint. Examples of translucent media are a Sun glasses, shower stall, smoked glass, and butter paper.
Transparent Object: An object which allows seeing anything clearly through an object means a complete passage of light is called a transparent object. A medium that allows all the light incident on it pass through it is called a transparent medium. Examples of transparent objects are plain glass, a plastic scale, window panes, a soap bubble, a reading glass, and pure water.
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