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Question
Write whether the following objects are luminous or non-luminous.
Object Luminous/Non-luminous A book A burning candle A wax cloth A pencil A pen A light bulb A tyre A torch
Write whether the following objects are luminous or non-luminous.
| Object | Luminous/Non-luminous |
| A book | |
| A burning candle | |
| A wax cloth | |
| A pencil | |
| A pen | |
| A light bulb | |
| A tyre | |
| A torch |
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Solution
Luminous objects:
Objects that can emit light energy by themselves are known as luminous objects.Non-luminous objects:Objects that cannot emit light energy by themselves are known as non-luminous objects.
Object Luminous/Non-luminous A book Non-luminous A burning candle Luminous A wax cloth Non-luminous A pencil Non-luminous A pen Non-luminous A light bulb Luminous A tyre Non-luminous A torch Luminous
Luminous objects:
Objects that can emit light energy by themselves are known as luminous objects.
Non-luminous objects:
Objects that cannot emit light energy by themselves are known as non-luminous objects.
| Object | Luminous/Non-luminous |
| A book | Non-luminous |
| A burning candle | Luminous |
| A wax cloth | Non-luminous |
| A pencil | Non-luminous |
| A pen | Non-luminous |
| A light bulb | Luminous |
| A tyre | Non-luminous |
| A torch | Luminous |
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