Answer:
Anemometer
Explanation:
It should be understood that the anemometer is different to wind vane in both structure and function.
This is because, anemometer is an instrument that is used to measure the speed of the wind, while the wind vane is used to measure the direction of the wind.
Therefore, in this case, the anemometer is going to be the instrument to measure the speed of the wind above the ocean waters.
Light speed in water is 2.25 times 10^5 m/s so the index of refraction is higher than the index of refraction of light in a vacuum which is 1.0. (speed in vacuum for light is 300,000 km/s)
Index of refraction of light in water is 3.0 time 10^5 m/s divided by 2.25 times 10^5 m/s = 1.33.
Hope this is what you wanted.
Radiation. hope that helped
epididymis-vas deferens-urethra