Physics
…………… of UV > …………… of microwaves
The quantity suitable for filling in both the blanks is:
- speed in vacuum
- speed in a medium
- frequency
- wavelength.
Spectrum
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Answer
frequency
Reason
- Speed in Vacuum → incorrect.
All electromagnetic waves (radio, microwave, infrared, visible, UV, X-ray, gamma) travel at the same speed in a vacuum: So, speed of UV = speed of microwaves in vacuum - Speed in medium → incorrect.
When electromagnetic waves enter a medium like glass or water, they slow down.
UV rays have higher frequency than microwaves. Therefore, UV rays interacts more strongly with the medium hence, they slow down more. - frequency → correct.
UV has a much higher frequency than microwaves.
Frequency of UV = Hz
Frequency of Microwaves = around - Hz - wavelength → incorrect.
We know that,
\ This means that a higher frequency corresponds to a shorter wavelength, while a lower frequency corresponds to a longer wavelength.
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