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Give scientific reasons A coin kept in...

Give scientific reasons
A coin kept in a bowl is not visible when seen from one side. But, when water is poured in the bowl , the coin becomes visible.

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NAVNEET PUBLICATION-REFRACTION OF LIGHT-EXERCISE
  1. Write short notes on the following : Refraction observed in the atmos...

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  2. Write short notes on the following : Dispersion of light

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  3. Give scientific reasons A coin kept in a bowl is not visible when se...

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  4. Give scientific reasons Apencil dipped in water obliquely appears be...

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  5. Give scientific reasons When a pencil is partly immersed in water an...

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  6. Give scientific reasons The shadow of the edge of an empty vessel is...

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  7. Give scientific reasons The bottom of a pond appears raised.

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  8. Give scientific reasons While shooting a fish in a lake, the gun is ...

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  9. Give scientific reasons Stars twinkle but we do not see the twinkling...

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  10. Give scientific reasons Stars appear to be twinkling at night.

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  11. Give scientific reasons The sun is seen on the horizon a little befo...

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  12. Give scientific reasons The sn is seen on the horizon for sometimes ...

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  13. Distinguish between Reflection of light and refraction of light :

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  14. Solve and fill in the blanks

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  15. Solve the following examples/ numerical problems:(c=3xx10^8 m/s) The...

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  16. Solve the following examples/ numerical problems:(c=3xx10^8 m/s) The ...

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  17. If the speed of light in a medium is 1.5xx10^8 m//s, what is the absol...

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  18. The absolute refractive index of water is 1.36. What is the velocity o...

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  19. Solve the following examples/ numerical problems:(c=3xx10^8 m/s) Lig...

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  20. The refractive index of water is frac(4)(3) and speed of light in air ...

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