Question

A non - luminous body can be made luminous by __________ it.
( 1 ) medium
( 2 ) pinhead
( 3 ) heating​

Answer 1

Answer:

Your answer is

A non luminous body can be made luminous by heating it.

I hope it helps you...

Answer 2

A non - luminous body can be made luminous by ( 3 ) heating​ it.

• Luminous objects have a light of their own i.e. they can act as a source of light.
• The Sun, stars, and candles are a few examples.
• Non-luminous objects do not have a light of their own. They can only reflect light.
• The moon, table, and door are a few examples.
• A non-luminous object when heated starts glowing because of thermal radiation.
• The heat energy provided to the object is radiated by the atoms as light energy due to excitation and deexcitation.