Question

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

Answer 1

Answer:

a substance that has its own light is called luminous object. 2 examples:

•bulb

•sun

Answer 2

Luminous object:

• When an object emits its own light, it is called as luminous object.
• It is its own source of light and heat.
• Luminous objects are responsible for our vision as the light from these objects is reflected by non-luminous object and everything is visible to our eyes.

Examples of luminous objects:

• Sun: It produces its own light and heat due to nuclear fusion reaction taking place in it.
• Candle: The chemical reaction between oxygen and carbon is responsible for its luminosity.