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Question 11 pts

Which of the following statements is true about visible light and the electromagnetic spectrum?
Group of answer choices

When all wavelengths of visible light are detected at once in equal proportions, the human eye perceives white light.

Electromagnetic waves with wavelengths in the visible range are invisible to humans because their wavelengths are too short or too long.

Different colors of light correspond to different wavelengths, with blue light having a longer wavelength than red light.

Sunlight contains only the wavelengths of red light, which is why it appears white to the human eye.

Question 21 pts
The process of combining different colors of light is called
Group of answer choices

color addition

color combination

absorption

reflection

Question 31 pts
When equal amounts of red, green, and blue light waves reach your eyes, the light appears ...
Group of answer choices

white

red

green

blue

Question 53 pts
As light moves farther from its source, it becomes less bright. How does a wave model of light explain the change in brightness? Select all that apply.
Group of answer choices

light spreads as it moves away from a source

energy is absorbed as it travels through different media

the amount of energy in an area decreases as light moves away from a source

light reflects off boundaries between media

1 answer

Here are the answers to your questions:

Question 1: Which of the following statements is true about visible light and the electromagnetic spectrum?

  • Correct answer: When all wavelengths of visible light are detected at once in equal proportions, the human eye perceives white light.

Question 2: The process of combining different colors of light is called

  • Correct answer: color addition

Question 3: When equal amounts of red, green, and blue light waves reach your eyes, the light appears ...

  • Correct answer: white

Question 4: As light moves farther from its source, it becomes less bright. How does a wave model of light explain the change in brightness? Select all that apply.

  • Correct answers:
    • light spreads as it moves away from a source
    • the amount of energy in an area decreases as light moves away from a source

(Note: The answer options provided are slightly misnumbered in the original question, as there are two questions labeled "Question 3" and one labeled "Question 4." I've assumed they were meant to progress sequentially with the questions.)