Question

Speed of light in three different media X, Y and Z are 1.25 lakh km/s, 2.25 lakh km/s and 3 lakhkm/s respectively. Out of X,Y and Z medium ,which one has least optical density and why? *
2 points
Medium X , reason- lower value of speed of light is referred to as optically denser.
Medium X ,reason- lower value of speed of light is referred to as optically rarer.
Medium Z, reason- higher value of speed of light is referred to as optically denser.
Medium Z, reason- higher value of speed of light is referred to as optically rarer.

Answer 1

Answer:

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