Characteristics Of Light (Section 1)

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Light Quizzes & Trivia

I think that a particle must have a separate reality independent of the measurements. That is an electron has spin, location and so forth even when it is not being measured. I like to think that the moon is there even if I am not looking at it.
Author: Albert Einstein


Questions and Answers
  • 1. 

    Which band of the electrmagnetic spectrum has the lowest frequency and shortest wavelength?

  • 2. 

    Which of the following electromagnetic waves has the highest frequency?

    • A.

      Radio

    • B.

      Ultraviolet radiation

    • C.

      Blue light

    • D.

      Infreared radiation

    Correct Answer
    A. Radio
    Explanation
    Radio waves have the lowest frequency among the given options. Electromagnetic waves are classified based on their frequency, and the frequency of radio waves is the lowest in the electromagnetic spectrum. Ultraviolet radiation, blue light, and infrared radiation all have higher frequencies than radio waves. Therefore, radio waves have the lowest frequency, while the other options have higher frequencies.

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  • 3. 

    Why can light be used to measure distances accurately? What must be known in order to make kistance measurements?

  • 4. 

    What is the relationship between the actual brightness of a light source nad its apparent brightness from where you see it?

  • 5. 

    How fast do X rays travel in a vacuum?

  • 6. 

    Why do astonmers observing distant galaxies talk about looking backward in time?

  • 7. 

    Do the brightest stars that you see in the night sky necessarily give off more light than dimmer stars?(explain)

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