) State the laws of refraction
4
The absolute refractive index of glass and water are and
ter
or light in glass is 2 * 10 m/s, calculate the speed of light in-
() yceum
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What is a neutralisation reaction? Give two examples
Why do acids not show acidic behaviour in the absence of wa
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Given : nwater=34 nglass=23 vglass=2×108 m/s nair=1
Speed of light in a medium vmedium=nc
where c and n are the speed of light in vacuum and refractive index of medium respectively.
(a) : vglass=nglassc
∴ 2×108=(3/2)c ⟹c=3×108 m/s
(b) : vwater=nwaterc
∴ vwater=(4/3)3×108=2.26×108 m/s
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