For an ideal stretched string with wave speed v = √(T/μ), which statements are correct?
Select all that apply

Question

For an ideal stretched string with wave speed v = √(T/μ), which statements are correct?

G1 Physics · Accepted Answer

From v = √(T/μ), the speed increases as √T and decreases as 1/√μ. For a same-material string, μ ∝ r². Doubling r makes μ four times larger, so the speed becomes one-half, not double. Therefore A, B and C are correct, while D is false.