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प्रश्न
What do you understand by candle power?
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उत्तर
To measure the brightness of light in comparison with the brightness of a candle. The unit of candle power is used.
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संबंधित प्रश्न
Write true or false of the following statement.
A shadow is formed because light travels in a straight-line path.
Differentiate between the luminous and non-luminous bodies. Give two examples of each.
Can a transparent medium form an image? Explain your answer.
Name any four man made sources of light.
From among the following objects, list out the opaque, translucent, and transparent bodies in the space provided below:
A glass strip, an ordinary paper, greased paper, tracing paper, polythene sheet, wooden piece, steel plate, glycerine, kerosene oil, mustard oil, grounded glass, stone, book, water, and milk.
Opaque Transparent Translucent
Write the names of some transparent objects.
Fill in the blank
Speed of light in vacuum is .................
Match the following.
| Group A | Group B |
| (a) Mirror | (1) Non-luminous |
| (b) Firefly | (2) Inverted image |
| (c) Pinhole camera | (3) Reflection |
| (d) Moon | (4) Luminous |
Amount of light entering into the eye is controlled by ______.
What is light?
