~IRC & ITC question with complete solution graded A+ 2023

~IRC & ITC question with complete solution graded A+ 2023 Intensity Reflection Coefficient (IRC) - correct answer The amount of sound that is reflected at a specular interface & at normal incidence Intensity Transmission Coefficient (ITC) - correct answer The amount of sound that continues on IRC= (z2-z1/z2+z1) squared - correct answer Equation for calculating IRC when impedances are known ITC= 1-IRC - correct answer Equation for calculating ITC when impedances are known IRC= intensity reflected/incident intensity (W/cm sqaured) - correct answer Equation for calculating IRC when intensities are known ITC= transmitted intensity/incident intensity (W/cm squared) - correct answer Equation for calculating ITC when intensities are known Refraction - correct answer Defined as a change in wave propagation (the transmitted beam) when travelling from one medium to another (the transmitted beam bends away from its expected path) Refraction - correct answer Can ONLY occur when there are different propagation speeds AND oblique incidence, anything not perpendicular to the interface; WILL NOT occur w/ normal incidence OR identical propagation speeds Away, Greater - correct answer If the propagation speed of medium 2 is greater than propagation speed of medium 1, the sound will bend _____ from the x-axis and the transmission angle will be _____ than the incident angle