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What causes the sparkle of diamonds :...

What causes the sparkle of diamonds :

A

External reflection of light

B

Internal reflection of light

C

Multiple internal reflections

D

Multiple external reflections

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The diamond shines due to To internal reflection.
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AGRAWAL EXAM CART BIHAR-PRACTICE SET 03-SECTION - IV (GENERAL SCIENCE)
  1. Which of the following is true about the force between two point charg...

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  2. What is the S.I. unit of electric charge?

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  3. What causes the sparkle of diamonds :

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  4. The reason why water ponds appear less deep?

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  5. Which of the following is correct about Permeability of free space?

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  6. The S.I unit of magnetic dipole moment is

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  7. How can a moving coil galvanometer be converted into a voltmeter ?

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  8. Convex lenses are used for

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  9. Who established the concept of absolute zero ?

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  10. Which of the following is true about the focal length of a spherical m...

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  11. Which of the following eye-defects is also known as far-sightedness?

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  12. Walking on a surface with zero friction force is relatively:

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  13. What do we call the long sightedness caused by loss of elasticity of t...

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  14. Which of the following is true about the force between two point charg...

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  15. What is the S.I. unit of electric charge?

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  16. What causes the sparkle of diamonds :

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  17. The bottom of a pond appears raised.

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  18. What is the value of absolute permeability of free space? Give its uni...

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  19. The S.I unit of magnetic dipole moment is

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  20. How can a moving coil galvanometer be converted into a voltmeter ?

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