n(index of refraction) = c(speed of light in a vacuum)/v(speed of material in the sebstance)
There will be refraction when light passes from one substance to the other (for example, from air to water), when the two substances have different indices of refraction, and when light passes the surface at an angle. In other cases, there is no refraction.
When light enters a different medium, the amount that the light is bent as it enters the medium is determined by the medium's index of refraction.
Index Of Refraction
the refraction of light in water medium is 1.0003,glass 1.5,etc.
The linear dimension of 62 inches is the equivalent to 5 feet 2 inches. Weight cannot be determined from this question, because different substances have different masses and densities.
Perhaps you are confusing with "refraction"? Refraction means that when a wave goes from one substance to another (for example, from air to water), it changes its direction. This is related with the index of refraction in the different substances, i.e., the wave has a different speed in the different substances.
For refraction to occur, there must obviously be two different substances that are both transparent to the radiation or waves under consideration. Also, the two substances must have different indices of refraction.
There will be refraction when light passes from one substance to the other (for example, from air to water), when the two substances have different indices of refraction, and when light passes the surface at an angle. In other cases, there is no refraction.
The directions would not be random, they would be determined by the index of refraction and the incidence ray. I'm assuming your talking of refraction which is when light changes its projected angle when traveling through a different substances which light travels different speeds. However if referring to a mirror, then it is simply called reflection.
When light enters a different medium, the amount that the light is bent as it enters the medium is determined by the medium's index of..........=refraction
This property is known as refraction. It applies to any type of waves. the angle of refraction is determined by Snell's Law: sin i/ sin r = refraction index
When light enters a different medium, the amount that the light is bent as it enters the medium is determined by the medium's index of..........=refraction
When light enters a different medium, the amount that the light is bent as it enters the medium is determined by the medium's index of..........=refraction
When light enters a different medium, the amount that the light is bent as it enters the medium is determined by the medium's index of..........=refraction
When light enters a different medium, the amount that the light is bent as it enters the medium is determined by the medium's index of refraction.
The critical angle depends on the index of refraction of the two substances, in this case, air and glass. The angle can be calculated by Snell's Law. It won't always be exactly 39.3°, since different glasses have different indices of refraction.
Refraction ~ look to related link below .