What will be the minimum angle of incidence such that the total?
Answer: The answer will be 60° as for upper part it will be 45° and for lower part it will be 60°.
What is the condition for total internal reflection?
If the angle of incidence is increased further, so that it is greater than the critical angle, the light will be totally internally reflected.
What is the maximum angle of incidence?
When the angle of incidence in water reaches a certain critical value, the refracted ray lies along the boundary, having an angle of refraction of 90-degrees. This angle of incidence is known as the critical angle; it is the largest angle of incidence for which refraction can still occur.
What is the critical angle for a diamond N 2.42 )? When air is 90 angle?
Given, the refractive index for diamond is 2.42 . Hence, the critical angle of the diamond is 24.2∘ .
Why does refractive index have no unit?
Answer. The refractive index has no units because the units cancel out when calculating the value. The refractive index is calculated by dividing the speed of light in a vacuum by the speed of light in the new medium.
What is the critical angle for the interface between water and diamond?
33.3∘
How do you find the critical angle of a diamond?
This phenomenon is known as total internal reflection. Here, n air is the refractive index of air, sinθ(air)is the angle of incidence, n d is the refractive index of diamond and sinC is the critical angle. 1⋅1=2.42sinCsinC=12.42C=24.4∘. Thus, the critical angle for diamond is24.4∘.
Why does a diamond sparkle physics?
Refraction and Dispersion As the light moves through the diamond, it is scattered and fractured, creating the sparkle that diamonds are known for. This is the refraction.
What is the angle of refraction if the angle of incidence is 0?
The angle of incidence is equal to angle of refraction only if the angle the deviation is zero. This is practically impossible since, when light enters a medium from another medium it has to undergo refraction.