Refractive Index: the ratio of the velocity of light in a vacuum to that in the given medium
sound travels through materials through molecules as we talk through our vocal box the molecule present in the air material start to vibrate it is because the material contain air as they vibrate we hear sound
transparent materials
The material is said to be translucent.
Translucent materials allows light to pass through it. Windows is a translucent material because it allows light to pass through it
Opaque materials do not allow light to pass through them.
A translucent material is a material which light can pass through.
Refraction is caused when light changes the medium that it is moving through. Therefore any material that is transparent to light will diffract it.
permeable materials
sound travels through materials through molecules as we talk through our vocal box the molecule present in the air material start to vibrate it is because the material contain air as they vibrate we hear sound
transparent materials
The material is said to be translucent.
Such materials through which you can see are called transparent materials. As for example-glass. Such materials through which you cannot see are called opaque materials. As for example- wood
Translucent materials allows light to pass through it. Windows is a translucent material because it allows light to pass through it
Translucent materials allows light to pass through it. Windows is a translucent material because it allows light to pass through it
Opaque materials do not allow light to pass through them.
There are many materials that light can not travel through which are called opaque objects.
The speed of sound in a material is dependent on several factors. Basically it travels through denser materials at a different rate than rarefied materials, through compressible materials at a different rate than incompressible materials, and through stiffer materials at a different rate than nonrigid materials. A slower velocity of sound would be noted in a dense, compressible nonrigid material.