Sources of Light

IMPORTANT

Sources of Light: Overview

This topic covers concepts such as, Luminous Objects, LED etc.

Important Questions on Sources of Light

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Moon shines at night due to the _____ of sunlight falling on it.

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A _____ object produces light on its own.

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Which of the following is a non-luminous body?

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What are natural luminous objects?

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What are luminous objects? Give some examples.

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The natural satellite of the Earth, the Moon is a luminous object. 

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What are luminous objects? Give some examples of it also.

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LEDs can generate only a single light colour.

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What you mean by LED? draw the symbol of it.

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Which objects emit their own light?

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Tick (ü) the luminous object and crossout (û) the non-luminous objects.

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Complete the following web chart.

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The sun is a _____ (luminous/ non-luminous) object.

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Select the odd one out.

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Select the odd one out.

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Choose the right word related to the given words.

Candle, Fire, _____ (Moon, Torch)

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Choose the right option related to the given words.

Candle, Fire, _____. (Moon, Torch)

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The bodies which give _____ energy of their own, are called luminous bodies.

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Give one example of luminous object.

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Give one example of a non-luminous object.