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Two rays of light have different colors (blue and green), and both are equally bright compared to the other. Indicate whether each property is the same or different when describing the frequency, and indicate whether the property is larger for blue or green.

1) The frequency is the same for both blue and green light
2) The frequency is different for blue and green light
3) The frequency is larger for blue light
4) The frequency is larger for green light

1 Answer

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Final answer:

The frequency and wavelength of light are inversely proportional. Blue light has a higher frequency and lower wavelength than green light. Therefore, the frequency is different between the two colors, and it is larger for blue light. Hence, the mention of the correct option in the final part would be Option 2 (the frequency is different for blue and green light) and Option 3 (the frequency is larger for blue light).

Step-by-step explanation:

In Physics, when comparing two rays of light with different colors, we must consider the properties of frequency and wavelength. The frequency of light is inversely proportional to its wavelength, which means if one is higher, the other must be lower. Given that blue and green light are both within the visible spectrum, they have characteristics that correlate to their position within that spectrum. Blue light, which is closer to the violet end of the spectrum, generally has a higher frequency than green light. Conversely, green light has a longer wavelength than blue light. Since energy is also related to frequency, blue light would have a larger energy than green light.

Therefore, when comparing the frequency of blue and green light, the correct options that describe the property about frequency would be that:

  • The frequency is different for blue and green light (Option 2).
  • The frequency is larger for blue light (Option 3).

If we applied these principles to white light passing through a prism, we would experience dispersion where blue light would refract at a different angle compared to green light due to their frequency and wavelength differences, thus separating the colors and creating a spectrum. To directly answer the question: the frequency for the two colors is different, with blue light having a higher frequency than green light. Hence, the mention of the correct option in the final part would be Option 2 (the frequency is different for blue and green light) and Option 3 (the frequency is larger for blue light).

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