Blundell Thermal Physics · Problem 31.6

Sound waves

Physics — Statistical Mechanics · sound-wave-crossing-the-sun

Problem

Estimate the time taken for a sound wave to cross the Sun using eqn 31.11, assuming that the average temperature of the Sun is

6 \times 10^6\,\text{K}

. [Assume that the Sun is mostly ionized hydrogen (protons plus electrons) so that the average mass per particle is about

m_\text{p}/2

. The radius

R_\odot

of the Sun is

6.96\times 10^8\,\text{m}