Question

According to Snell's law, the angle of transmission is related to the incident beam angle and:

a) The amount of acoustic impedance mismatch at an interface
b) The change in frequency that occurs at an interface
c) One-half the angle of incidence
d) The relative velocities of sound in the two media
e) The percentage of diffraction distal to the interface

Answer 1

The angle of transmission in Snell's law is related to the incident angle and the relative velocities of sound in the two media, specifically expressed as the indices of refraction for each medium.

Step-by-step explanation:

According to Snell's law, the angle of transmission is related to the incident beam angle and the relative velocities of sound in the two media. Snell's law is expressed mathematically as n1 sin θ1 = n2 sin θ2, where n1 and n2 are the indices of refraction of the two media and θ1 and θ2 are the angles of incidence and transmission, respectively. This law indicates that when light passes from one medium to another, it bends in such a way that the ratio of the sine of the incidence angle to the sine of the transmission angle is constant and equal to the ratio of the speeds of light in the two media.

The change in the light ray's direction is due to the change in speeds as it enters a different medium, which derives from Huygens's principle applied to a wavefront at the interface.