Question

What is meant by a non-luminous object? Name two non-luminous objects.

Answer 1

Those objects which do not emit their own light are known as non luminous objects

I. e. wood, plastic and metall

Explanation:

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Answer 2

Non-luminous object:

• An object that cannot emits its own light is called as non-luminous object.
• It is observed by our eyes only when the light from luminous object is reflected by non-luminous object.
• It is observed only in presence of luminous object.
• It can reflect both heat and light.
• Colour of luminous objects depends on the colour of the light produced by luminous object.

Examples of non-luminous object:

• Moon = Reflects light from sun.
• Metal = Reflects light