SELECT * FROM question_mgmt as q WHERE id=3749 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=9 AND subId=16 AND chapterId=261 and ex_no='3' AND status=1 ORDER BY CAST(question_no AS UNSIGNED) CBSE Free NCERT Solution of 10th science Light - Reflection and Refraction the refractive index of diamond is 2 42 what is t

Question:

The refractive index of diamond is 2.42. What is the meaning of this statement?

Answer:

The refractive index of diamond is 2.42. This means  that the speed of light in diamond will reduce by a factor 2.42 compared to its speed in air.

Refractive index of a medium nm is related to the speed of light in that medium v by the relation:

Where, c is the speed of light in vacuum/air.


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