Why wave with lower frequency produce heat?

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SUMMARY

Lower frequency waves do not inherently produce heat; rather, the heat generation depends on the interaction of waves with materials. Microwaves and infrared radiation, which are higher frequency, can also produce heat effectively. A blackened thermometer can detect radiation across various wavelengths, including infrared and ultraviolet, but it does not differentiate between them. The concept of blackbody radiation explains that a blackened thermometer absorbs all incoming radiation and emits heat based on its temperature.

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Clara Chung
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why wave with lower frequency produce heat? please explain to me
 
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Clara Chung said:
why wave with lower frequency produce heat? please explain to me

that's not necessarily true, consider a microwave oven or even higher frequency, infrared radiation
so please elaborate on what specifically you are referring to ?

Dave
 
davenn said:
that's not necessarily true, consider a microwave oven or even higher frequency, infrared radiation
so please elaborate on what specifically you are referring to ?

Dave
In my book, it says we can use a blackened thermometer to detect the radiation just outside the red end of the visible spectrum. I don't understand why only fluorescent materials can detect radiation just outside the violet end of the visible spectrum but not blackened thermometer just like the waves with lower frequency. i.e. why won't the energy in higher frequency waves releases as heat
 
Clara Chung said:
In my book, it says we can use a blackened thermometer to detect the radiation just outside the red end of the visible spectrum. I don't understand why only fluorescent materials can detect radiation just outside the violet end of the visible spectrum but not blackened thermometer just like the waves with lower frequency. i.e. why won't the energy in higher frequency waves releases as heat
You can use a blackened thermometer to detect ultraviolet radiation too. A blackbody absorbs all incoming radiation, regardless of wavelength and then emits blackbody radiation characteristic of its temperature.

A blackened thermometer won't distinguish between infrared or ultraviolet.
 
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