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Brilliance of diamond is due to...

Brilliance of diamond is due to

A

shape

B

cutting

C

reflection

D

total internal reflection.

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The correct Answer is:
D
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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. The following diagram shows same diamond cut in two different shapes. The brilliance of diamond in the second diamond will be:

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. The basic reason for the extraordinary sparkle of suitably cut diamond is that

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. The critical angle for a diamond is 24.4^@ . Then its refractive index is

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

The glittering nature of diamond is due to

MODERN PUBLICATION-RAY OPTICS AND OPTICAL INSTRUMENTS-Revision Exercises (Additional Questions)
  1. To get three images of a single object, one should have two plane mirr...

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  2. If the radius of curvature of a convex mirror is 40 cm, then its focal...

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  3. The power of a lens of focal length 0.5 m is :

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  4. A concave lens of focal length 20 cm product an image half in size of ...

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  5. Two lenses of power +12 D and -2 D are combined together. What is thei...

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  6. What is the unit of refractive index?

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  7. Which process takes place in lens ?

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  8. Brilliance of diamond is due to

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  9. Mirage is formed due to .

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  10. The rainbow is formed due to

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  11. For what angle of incidence, the lateral shift produced by a parallel ...

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  12. Prism works on the principle of :

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  13. The final image produced by a simple microscope is :

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  14. Sky appears to be blue in clear atmosphere due to :

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  15. What is the unit of magnification of a microscope ?

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  16. Choose the correct alternative: A parallel beam of white light falls...

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  17. A concave lens always produces ……………………………. images.

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  18. A luminous object is separated from a screen by distance d. A convex l...

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  19. When light is incident on a medium of refractive index mu from rarer m...

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  20. If a very short pulse of white light were to travel through a glass pl...

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