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is the fundamental and natural source of...

_______ is the fundamental and natural source of light.

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SURA PUBLICATION-OPTICS-ADDITIONAL QUESTIONS & ANSWER (Fill in the blanks (Covers whole unit))
  1. The velocity of light is less in medium.

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  2. When light travels from rarer to denser medium, the refracted ray is ...

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  3. is the fundamental and natural source of light.

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  4. is an example of a composite source.

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  5. The angle of refraction is determined in terms of the of the medium.

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  6. The source of light produces a light of single colour, it is known as...

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  7. light is a composite light which consists of light of various colours ...

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  8. If the energy of incident beam and the scattered beam are same, then ...

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  9. The and of the scatterer results in different types of scattering.

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  10. At sunrise and sunset , the light rays from the sun have to travel a ...

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  11. The scattering of sunlight by the atoms or molecules of the gases in t...

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  12. The amount of scattering of light is inversely proportional to the po...

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  13. According to Rayleigh's law, the shorter wavelength colours are scatte...

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  14. When sunlight passes through the atmosphere , the colour is scattered...

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  15. Mie scattering is also called as scattering .

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  16. Milk, ice cream , muddy water are .

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  17. The spectral lines having frequency equal to the incident ray frequenc...

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  18. The spectral lines which are having frequences other than the incident...

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  19. The lines having frequencies lower than the incident frequency is call...

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  20. The lines having frequencies higher than the incident frequency is cal...

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