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True/false: If angle of incidence is zero,then the angle of refraction is `90^@`

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CHETANA PUBLICATION-LIGHT-REFLECTION AND REFRACTION-EXAMPLE
  1. When light ray travels from denser medium to rarer, then it

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  2. When light ray travels from denser medium to rarer, then it

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  3. True/false: If angle of incidence is zero,then the angle of refraction...

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  4. When light ray travels from denser medium to rarer, then it

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  5. True/false: The splitting of white light into its component colours is...

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  6. The phenomenon of splitting of sunlight into spectrum is called

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  7. A mterial whose refractive index is 2.42.

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  8. What is the reason for the twinkling of star:?

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  9. Fill in the blanks : The ratio of sine of angle of incidence to the si...

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  10. Which colour of light deviates the least in the spectrum obtained with...

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  11. Fill in the blanks : Phenomenon behind formation of rainbow is .

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  12. The unit of refractive index

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  13. Refractive index of kerosene

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

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  15. Light travels with a velocity 1.5xx10^8m//s in a medium. On entering 2...

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

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  17. If the absolute refractive indices of glass and water are 3//2 and 4//...

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  18. If the refractive index of second medium with respect to first medium ...

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  19. If the angle of incidence and angle of emergence of a light ray fallin...

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  20. What is refraction of light?

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