Refraction.
(I'm giving you a pass on the wording of the question. A wave always crosses the
boundary between two media at some angle. The angle really should have been
described in better detail.)
speed
Refraction occurs when a wave crosses a boundary from one medium to another. A wave entering a medium at an angle will change direction.Diffraction refers to the "bending of waves around an edge" of an object. Diffraction depends on the size of the object relative to the wavelength of the wave.bestfahadali@yahoo.com
speed
refraction
Refraction
Refraction.
the index of refraction essentially compares the velocity of a wave in 2 different medium to the calculate the angle with which the wave will diverge from its original path, so unless u give the other medium your wave is entering the vacuum from the question is nonsensical, hopefully this helped u.
speed
Yes
For refraction to occur in a wave, the wave must enter a new medium at an angle.
Refraction occurs when a wave crosses a boundary from one medium to another. A wave entering a medium at an angle will change direction.Diffraction refers to the "bending of waves around an edge" of an object. Diffraction depends on the size of the object relative to the wavelength of the wave.bestfahadali@yahoo.com
speed
refraction
It is called refraction.
Refraction
B. wave lines approaching shore at an angle.
Refraction.