How is infra-red radiation detected? - Leaving Cert Physics - Question 4d - 2007
Question 4d
How is infra-red radiation detected?
Worked Solution & Example Answer:How is infra-red radiation detected? - Leaving Cert Physics - Question 4d - 2007
Step 1
Thermometer / temperature sensor (or probe)
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Answer
Infrared radiation can be detected using a thermometer or temperature sensor, which measures the temperature changes caused by the absorption of infrared radiation.
Step 2
Photographic film (or plate)
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Infrared radiation can also be detected using photographic film or plates that respond to the exposure caused by infrared light, enabling visualization of infrared images.
Step 3
Heating effect
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Answer
Another method of detecting infrared radiation is through its heating effect, where the radiation is absorbed and converted into heat, indicating the presence of infrared energy.
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