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प्रश्न
Tick the correct answer.
Substance which don’t allow light to pass through them,
पर्याय
Transparent substance
Opaque substance
Translucent substances
Non-luminous substance
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उत्तर
Opaque substance
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संबंधित प्रश्न
What is light? Define it.
Is the moon a luminous object?
Fill in the blank
The brightness of light is measured in ...................
Fill in the blank
A ............. is formed when the path of light is obstructed by an ..............
Write true or false
Opaque objects do not allow light to pass through them.
Answer the following.
What is light?
Light travels only in a______ It is because of this property that______ are formed.
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.
Why are traffic signals red in colour?
Light is a form of energy and it travels in a straight line.
