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प्रश्न
What are infrared radiations?
उत्तर
Infrared radiations are the electromagnetic waves of wavelength in the range of 8000Å to 107Å.
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संबंधित प्रश्न
Give one use of infrared radiations.
Give two such properties of infrared radiations which are not true for visible light.
Give reason for the following:
A rock salt prism is used instead of a glass prism to obtain the infrared spectrum.
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.
How can the presence of infrared Radiations be detected?
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.
