Wavelength of a colour of light for air is 6000A‚àò and in water the wavelength is 4500A‚àò. What is the speed of light in water.
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speed of light in (water/air)=wavelength of light in(water/air)
=>speed in water /3.10^8m/s=4500/6000
=>speed in water=(4500/6000).3.10^8=2.5.10^8 M/s
=>speed in water /3.10^8m/s=4500/6000
=>speed in water=(4500/6000).3.10^8=2.5.10^8 M/s
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