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प्रश्न
Fill in the blank
Light consists of .............. colours.
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उत्तर
Light consists of seven colours.
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संबंधित प्रश्न
Select the correct alternative.
The luminous body is
What do we call an electric bulb producing light?
What do we call a substance through which light passes? Give an example of such a substance.
Fill in the blank
The brightness of light is measured in ...................
Answer the following.
Differentiate between luminous and non-Luminous objects.
________ objects allow all the light to pass through them.
Light travels only in a______ It is because of this property that______ are formed.
Choose the translucent substance from the following
If VB, VG, VR be the velocity of blue, green, and red light respectively in a glass prism, then which of the following statement gives the correct relation?
Velocity of light is greater in denser medium than in rarer medium
