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Question
Write whether of 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 |
Solution
| 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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