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प्रश्न
What do you understand by candle power?
एक पंक्ति में उत्तर
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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
How do we see objects around us ?
Write true or false of the following statement.
The moon is self-luminous.
Match the following columns
| Column A | Column B |
| a. Wooden block | i. new moon's day |
| b. Sun | ii. rectilinear propagation of light |
| c. Umbra | iii. opaque body |
| d. Eclipse | iv. luminous body |
| e. Solar eclipse | v. complete dark park |
Select the correct alternative.
The natural source of light is
Is the moon a luminous object?
What is a transparent medium? Give two examples.
Write the names of some cold light-emitting objects.
________ objects allow all the light to pass through them.
_______ is the natural source that stimulates sight and makes things visible.
State whether the following statement is True or False.
An object can be seen only if it emits light
