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The speed of a wave produced in water is given by ν = λ a g b ρ c . Where λ , g and ρ are wavelength of wave, acceleration due to gravity and density of water respectively. The values of a, b and c respectively, are

1. 1, –1, 0
2. 2 1 , 0, 2 1
3. 1, 1, 0
4. 2 1 , 2 1 , 0

Correct answer: 2 1 , 2 1 , 0

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