Water is optically rarer than oil. Which of the following is true for this statement?

The mass density of water is less than that of oil.

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The speed of light is more in water than that in oil.

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Water and oil have the same mass density.

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The speed of light is less in water than that in oil.

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Solution

The correct option is B The speed of light is more in water than that in oil.

Speed of light does not depend on mass density, but depends on optical density.

As water is optically rarer than oil, the speed of light in water is more.

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State whether the following statement is True or False:
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