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प्रश्न
Fill in the blank
The brightness of light is measured in ...................
उत्तर
The brightness of light is measured in candle power.
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संबंधित प्रश्न
What is light? Define it.
Is the moon a luminous object?
Write true or false
The earth has its own light.
Answer the following.
Write down five man-made sources of light.
Answer the following.
What is meant by luminous intensity? What is one lumen?
Answer the following.
List two transparent objects.
A ______ is a natural source of light.
When a ______ object comes in the way of light, light passes ______ it.
State whether true or false. If false, correct the statement.
If a ray of light passes obliquely from one medium to another, it does not suffer any deviation.
Boojho and Paheli were given one mirror each by their teacher. Boojho found his image to be erect and of the same size whereas Paheli found her image erect and smaller in size. This means that the mirrors of Boojho and Paheli are, respectively
