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प्रश्न
Tick the correct answer
Glass is
विकल्प
Opaque
Luminous
Transparent
None of these
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उत्तर
Transparent
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संबंधित प्रश्न
How do we see objects around us ?
Name two natural sources of light.
Name any four man made sources of light.
Tick the correct answer.
The natural source of light is
Answer the following.
What is light?
Answer the following.
What is meant by luminous intensity? What is one lumen?
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.
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
Boojho made light from a laser torch fall on a prism. Will he be able to observe a band of seven colours? Explain with a reason.
Light is a form of energy and it travels in a straight line.
