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The blue colour of water in the sea. What is the reason behind the phenomenon?
  • a)
    Refraction of the blue light by the impurities in sea water.
  • b)
    Scattering of blue light by water molecules.
  • c)
    Refraction of blue sky by sea water.
  • d)
    Absorption of other colours except the blue colour by water molecules.
Correct answer is option 'B'. Can you explain this answer?
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The blue colour of water in the sea. What is the reason behind the phe...
Water molecules scatter blue wavelengths by absorbing the light waves, and then rapidly remitting the light waves in different directions. That is why there are mostly blue wavelengths that are reflected back to our eyes.
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In 1986, the Government of India, under then Prime Minister Rajiv Gandhi, designated February 28 as National Science Day to commemorate the announcement of the discovery of the “Raman Effect”. This year’s edition is being celebrated under the theme of “Global Science for Global Wellbeing”, in light of India’s G20 presidency. The Raman Effect was the discovery which won physicist Sir CV Raman his Nobel Prize in 1930. Conducting a deceptively simple experiment, Raman discovered that when a stream of light passes through a liquid, a fraction of the light scattered by the liquid is of a different colour. This discovery was immediately recognised as groundbreaking in the scientific community, being the subject of over 700 papers in the first seven years after its announcement. The Raman Effect refers to the phenomenon in which when a stream of light passes through a liquid, a fraction of the light scattered by the liquid is of a different colour. This happens due to the change in the wavelength of light that occurs when a light beam is deflected by molecules. In general, whenlight interacts with an object, it can either be reflected, refracted or transmitted. One of the things that scientists look at when light is scattered is if the particle it interacts with is able to change its energy. The Raman Effect is when the change in the energy of the light is affected by the vibrations of the molecule or material under observation, leading to a change in its wavelength. In their first report to Nature, titled “A New Type of Secondary Radiation,” CV Raman and co-author KS Krishnan wrote that 60 different liquids had been studied, and all showed the same result – a tiny fraction of scattered light had a different colour than the incident light. Raman said, “a phenomenon whose universal nature has to be recognised.”Which of the following attributes can be associated with the Raman Effect? Ultraviolet spectrum of light. Complete scattering of light. Decrease in energy of light. Change in wavelength of light.Which of the statements given above is/arecorrect?

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The blue colour of water in the sea. What is the reason behind the phenomenon?a)Refraction of the blue light by the impurities in sea water.b)Scattering of blue light by water molecules.c)Refraction of blue sky by sea water.d)Absorption of other colours except the blue colour by water molecules.Correct answer is option 'B'. Can you explain this answer?
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The blue colour of water in the sea. What is the reason behind the phenomenon?a)Refraction of the blue light by the impurities in sea water.b)Scattering of blue light by water molecules.c)Refraction of blue sky by sea water.d)Absorption of other colours except the blue colour by water molecules.Correct answer is option 'B'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about The blue colour of water in the sea. What is the reason behind the phenomenon?a)Refraction of the blue light by the impurities in sea water.b)Scattering of blue light by water molecules.c)Refraction of blue sky by sea water.d)Absorption of other colours except the blue colour by water molecules.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The blue colour of water in the sea. What is the reason behind the phenomenon?a)Refraction of the blue light by the impurities in sea water.b)Scattering of blue light by water molecules.c)Refraction of blue sky by sea water.d)Absorption of other colours except the blue colour by water molecules.Correct answer is option 'B'. Can you explain this answer?.
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