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A star appears twinkling in the sky beca...

A star appears twinkling in the sky because of _______ by the atmosphere .

A

scattering of light

B

reflection of light

C

refraction of light

D

both a & b

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The correct Answer is:
C
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SURA PUBLICATION-OPTICS-ADDITIONAL QUESTIONS & ANSWER (Choose the Correct Answer)
  1. Rainbow formation is due to water droplets .

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  2. Red light is used in traffic signals because .

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  3. A star appears twinkling in the sky because of by the atmosphere .

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  4. When a beam of light is passed through a colloidal solution , the ligh...

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

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  6. The phenomenon of scattering of light by the sol particles is called

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  7. The scattering of light by pure light is scattering .

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  8. The scattered light in Raman scattering contains lines

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  9. Convex lens produces a beam of light

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  10. A concave lens is a .

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  11. In spherical lenses, all distance are measured from .

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  12. The part of the lens through which the ray of light passes without suf...

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  13. Convex lens always forms a real image , if the object is situated beyo...

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  14. A convex lens forms a virtual image, if the object is

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  15. The image formation by spherical lenses is due to the phenomenon of .

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  16. According to snell's law,

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  17. When a ray of light entes glass from water, it bends .

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  18. Where should an object be placed so that a real and inverted image of ...

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  19. The point at which the principal axis meets the surface of the lens is...

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  20. When a person uses a convex lens as a simple magnifying glass, the ob...

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