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At sunrise and sunset , the light rays f...

At sunrise and sunset , the light rays from the sun have to travel a _________ in the atmosphere is known as ________ scattering.

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SURA PUBLICATION-OPTICS-ADDITIONAL QUESTIONS & ANSWER (Fill in the blanks (Covers whole unit))
  1. If the energy of incident beam and the scattered beam are same, then ...

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

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

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

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

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

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

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  8. Mie scattering is also called as scattering .

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  9. Milk, ice cream , muddy water are .

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

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

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

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

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  14. is an optically transparent medium bounded by two spherical refracting...

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  15. When rays parallel to the principal axis strikes a concex lens, the re...

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  16. When an object is placed beyond C, a real and inverted images is forme...

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  17. lenses are used in making microscope and telescope.

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  18. When an object is placed between F and C, the size of the image is th...

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  19. If one of the focus of a bi-covnex lens is plane, it is known as a .

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  20. In a lens , one of the faces of a bi-concave lens is plane.

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