Question

The velocity v of water waves may depend on their wavelength
2 density of water p and the acceleration due to gravity g. Find
relation between these quantities by the method of dimension?
Name physical quantities whose units are electron volt and pscal​

Answer 1

Answer:

Explanation:

Let  v = k * λ^a ρ^b g^c

   v = [L] [T]⁻¹   λ = [ L]       ρ = density = [M] [L]⁻³     g = [ L] [T]⁻²

Hence   [L][T]⁻¹ = [M]^b [L]^{a-3b+c} [T]^{-2c}

Comparing the dimensions:

            b = 0.    c = 1/2       => a = 1/2

So   v = k √(gλ)