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प्रश्न
What do we call an electric bulb producing light?
उत्तर
Artificial source of light.
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संबंधित प्रश्न
How do we see objects around us ?
Write true or false of the following statement.
Light travels in a straight-line path.
What do we call a substance through which light passes? Give an example of such a substance.
Can a transparent medium form an image? Explain your answer.
________ objects allow all the light to pass through them.
Sunlight is a blend of______ colors
Speed of light in air is 3 × 108 m s–1 and the refractive index of a medium is 1.5. Find the speed of light in the medium.
The angle of deviation of light ray in a prism depends on the angle of ______.
Amount of light entering into the eye is controlled by ______.
State whether the following statement is True or False
An object can be seen only if it emits light.
