A man in an empty swimming pool has a telescope focused at 4 o'clock sun. When the swimming pool is filled with water, the man observes the setting sun through telescope. If sun rises and sets at 6 o'clock, then refractive index of water is :

A man in an empty swimming pool has a telescope focused at 4 o'clock s

1.	A man in an empty swimming pool has a telescope focused at 4 o'clock sun. When the swimming pool is filled with water, the man observes the setting sun through telescope. If sun rises and sets at 6 o'clock, then refractive index of water is :
Answer» `(2)/(SQRT3)` `(3SQRT3)/(2)` `(4sqrt2)/(3)` none Answer :A

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A man in an empty swimming pool has a telescope focused at 4 o'clock sun. When the swimming pool is filled with water, the man observes the setting sun through telescope. If sun rises and sets at 6 o'clock, then refractive index of water is :

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