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10Light energy helps us to see objects around us.
We can see objects in the dark even without light
Sunlight is a natural source of light.
Electric lamps are natural sources of light.
Candles, torches, and flashlights are man-made sources of light.
Dark objects can be seen in the absence of light.
Eyes alone cannot help us see objects without light.
Stars are natural sources of light.
Objects that have their own light are called luminous objects.
We can see objects in a dark room without any light.
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What type of energy helps us to see objects?
Why could Rajan not see anything in his uncle’s house?
Which of the following is a natural source of light?
Which of the following is a man-made source of light?
What could Rajan have used to safely go to his uncle’s bedroom?
Which of the following objects gives light by itself?
Man-made sources of light include:
We can see surrounding objects easily in:
Which of the following is a natural source of light?
Which of the following is a non-luminous object?
Light energy helps us to see ______ around us.
Rajan could not see his uncle in the dark due to lack of ______.
______ alone cannot help us see objects without light.
______ and ______ are natural sources of light.
______ lamps, ______, ______, ______ lamps are man-made sources of light.
We can see objects during the day because of ______.
Dark objects can be seen using ______ or ______.
Objects that give light are called ______ sources.
The sun is a ______ luminous object.
We need ______ light energy to see objects.