12th Class Physics Sample Paper Physics Sample Paper-2

  • question_answer
    During the trip to Andaman, Swapnil went to Havloc beach to watch the sunset. He was amased to see the sun with its reddish appearance. Immediately he asked his father about this spectacular sky, His father explained him about this phenomena.
    Read the above passage and answer the following questions.
    (i) What is the cause of reddish appearance of sun at sunset?
    (ii) What values did Swapnil show?


    (i) During the time of sunset, the sun is near the horizon, the rays from the sun has to pass through a larger distance in the atmosphere. Most of the blue and other shorter wavelengths are removed by scattering Only red colour, which is least scattered, enters our eyes, so it appears red at the time of sunset,
    (ii) Inquisitiveness and a good observer.

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