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प्रश्न
Assertion (A): Infrared radiations travel long distance through a dense fog and mist.
Reason (R): Infrared radiations undergo minimal scattering in earth's atmosphere.
पर्याय
Both A and R are true and R is the correct explanation of A.
Both A and R are True and R is not the correct explanation of A.
Assertion is false but reason is true.
Assertion is true but reason is false.
उत्तर
Both A and R are true and R is the correct explanation of A.
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संबंधित प्रश्न
Give one use of infrared radiations.
Mention three properties of infrared radiations similar to the visible light.
Give two such properties of infrared radiations which are not true for visible light.
Give reason for the following:
Infrared radiations are used for photography in fog.
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 ______.
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?
State one harmful effect of the infrared radiation.
