Assertion : Diamond are known for their spectacular brilliance, but diamonds found in nature rarely exhibit the brilliance.
Reason : By cutting the diamond suitably, multiple total internal reflections can be made to occur.

The reason for brilliance of diamonds is total internal reflection of light.

Assertion (A) : Diamond does not reflect light . Reason (R) : Diamond has low refractive index.

Assertion (A) : Diamond does bnot reflect light . Reason (R) : Diamond has low refractive index.

Assertion: In ionospheric reflection, phase change does not occurs with the light wave. Reason: The ionosphere reflection is similar to the tatol internal reflection is similar to the total internal reflection in miral.

Assertion: In ionospheric reflection, phase change does not occurs with the light wave. Reason: The ionosphere reflection is similar to the tatol internal reflection is similar to the total internal reflection in miral.

Sparking Brilliance of Diamond: The total internal reflection of the light is used in polishing diamonds to create a sparking brilliance. By polishing the diamond with specific cuts, it is adjusted the most of the light rays approaching the surface are incident with an angle of incidence more than critical angle. Hence, they suffer multiple reflections and ultimately come out of diamond from the top. This gives the diamond a sparking brilliance. Light cannot easily escape a diamond without multiple internal reflections. This is because:

Sparking Brilliance of Diamond: The total internal reflection of the light is used in polishing diamonds to create a sparking brilliance. By polishing the diamond with specific cuts, it is adjusted the most of the light rays approaching the surface are incident with an angle of incidence more than critical angle. Hence, they suffer multiple reflections and ultimately come out of diamond from the top. This gives the diamond a sparking brilliance. A diamond is immersed in a liquid with a refractive index greater than water. Then the critical angle for total internal reflection will

Why does a diamond sparkle with great brilliance? Or, Why does a diamond cut in the same fashion shine more brightly than a piece of glass?

Light is incident at point A on one of the faces of a diamond crystal (mu = 2.0) . Find the maximum allowed value of angle of incidence theta so that light suffers total internal reflection at point B.