Question
What is Law of Density?
Answer
Law of Density – If l, T and D are constants, then frequency of vibration of stretched string (f) is inversely proportional to the square root of the density of wire. [∵ f = n/2l√T/μ = n/2l√TIA/MA = n/2l√4T/ρ D2 π ] i.e. f ∝ 1/√ρ
