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प्रश्न
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 |
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उत्तर
| 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 |
संबंधित प्रश्न
What do you understand by candle power?
Tick the correct answer
Glass is
Match the following
| Column A | Column B |
| 1. Transparent object | i. Football |
| 2. Eclipses | ii. Glass |
| 3. Translucent object | iii. Fluorescent tube |
| 4. Luminous object | iv. Tracing paper |
| 5. Non - luminous object | v. Shadows |
Answer the following.
Distinguish between transparent, translucent, and opaque objects.
_______ is the natural source that stimulates sight and makes things visible.
Light is a form of ______.
Choose the translucent substance from the following
A ray of the light incident along normal to the mirror ______ its path.
Observe the picture given in the following figure carefully.
A patch of light is obtained at B, when the torch is lighted as shown. Which of the following is kept at position A to get this patch of light?
Using a pinhole camera a student observes the image of two of his friends, standing in sunlight, wearing yellow and red shirt respectively. What will be the colours of the shirts in the image?
