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प्रश्न
Give two such properties of infrared radiations which are not true for visible light.
Give two properties of infrared radiations which differ from visible light
उत्तर
- Infrared radiation is invisible.
- They do not affect ordinary photographic film.
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संबंधित प्रश्न
What are infrared radiations?
Mention three properties of infrared radiations similar to the visible light.
Give reason for the following:
A rock salt prism is used instead of a glass prism to obtain the infrared spectrum.
A radiation P is focused by a proper device on the bulb of a thermometer. Mercury in the thermometer shows a rapid increase. The radiation P is ______.
Name the material prism required for obtaining the spectrum of infrared radiation.
Name the radiations which are absorbed by the green house gases in the earth's atmosphere.
Name the radiations that are used for photography at night.
Infrared radiations are used in warfare. Explain with reason, why?
Assertion (A): Infrared radiations travel long distance through a dense fog and mist.
Reason (R): Infrared radiations undergo minimal scattering in earth's atmosphere.
State one harmful effect of the infrared radiation.
