two. refraction is caused because of a wave passing between one medium to another, therefore changing its speed. Waves travel through different mediums at different speeds, depending on the medium's refractive index. By passing from one medium to another, it will change speed and therefore refract.
No refraction can occur either way!
More details!
There are four different wave phenomena. The wave phenomena are; refraction, interference, reflection, and diffraction. Things that occur with waves will usually involve at least one of these phenomena.
The density. Refraction occurs at the boundary between two media of differing densities, such as air and water.
standing waves
No refraction can occur either way!
For refraction to occur in a wave, the wave must enter a new medium at an angle.
More details!
Refraction occurs for any waves, where there's a change in the medium.
There are four different wave phenomena. The wave phenomena are; refraction, interference, reflection, and diffraction. Things that occur with waves will usually involve at least one of these phenomena.
The density. Refraction occurs at the boundary between two media of differing densities, such as air and water.
Yes, it is true.
standing waves
It seems that you have not got a hold on refraction yet. Refraction occurs when a light is moving from one kind of medium to another kind. Now the slower the light moves more is the refraction. In fact refraction occurs due to change in the velocity of light in different mediums. When light moves from a rarer medium to a denser medium like say from air to glass, The speed of light decreases and the light moves towards the normal. A part of the light gets reflected back into the air as it falls on a denser medium. The reflection you see in the mirror is not perfect as due to the thickness of the glass most of the light refracts and some reflects.
It is because of the change in velocity of light in two different media.
No
the difference is transmission occur in same medium,but refraction occurs whn 2 medias are there,its actually bending of light at interface of 2 medias