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The smallness of the critical angle Θc for diamond means that light is easily "trapped" within a diamond and eventually emerges from the many cut faces. This makes a diamond more brilliant than stones with smaller n and larger Θc. Traveling inside a diamond, a light ray is incident on the interface between diamond and air.
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What is the different between a reflection on mirror and water?
Reflection from water will occur only beyond the critical angle between air and water. Reflection from a mirror will occur at all angles.
What will happen if the angle of incidence is bigger than the critical angle?
A complete reflection will occur
What happens to the light ray when the angle of incidence is greater than the angle of total reflection?
it is not the angle of total reflection, it is the critical angle. and when the angle of incidence is greater than the critical angle, total internal reflection takes place and as it is necessary for total internal reflection to take place that the ray must travel from denser to rarer medium so, when it occurs, the ray is reflected bach into the denser medium.
Why is personal reflection is critical to effective group work practice?
they consist of set of started assumptions
What does refraction and reflection have to do with mirages?
Actually it is refraction process and specifically indentified as total internal reflection. The condition for total reflection is that the ray has to traverse from denser medium to the rarer medium and the angle of incidence has to be more than the critical angle.
Is fiber optic cable related to refraction?
Not really. More to do with reflection and the critical angle which gets it to reflect for infinity .
What is is the term for the phenomena observed when the incident angle is made greater than the critical angle?
Total internal reflection
What tajes place when the angle of incidence is smaller than the critical angle?
Refraction and partial internal reflection occurs
Why is a small critical angle desirable for optical fibers What problems could be caused if the critical we're increased?
because a smaller critical angle means that it is easier for total internal reflection to occur, which is the desirable quality in an optical fibre.
What name is given to the angle where total internal reflection occurs?
Total internal reflection occurs when the angle of incidence with respect to the normal at the boundary to a less dense medium exceeds the critical angle.
The angle of reflection may be determined by erecting a what?
By increasing the angle of incident ray above critical angle 90 degree
If angle of incidence equals critical angle what is angle of refraction?
90o. i think there will be no refraction there will be totally internal reflection
