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∙ 12y agoSo we know that Θc=arcsin(n1/n2) (or now you do.lol). So n1=index of refraction of air=1, n2=index of refraction of water=1.333 (these values obtained from a table in a physics book, readily available online as well). Thus, arcsin(1/1.333)=48.6°
So now you know your angle of incidence between a line perpendicular to the bottom of the pool at the center of the light and your ray of light. So from your vertical line, move your ray 48.6° to the right (or left). You should see an upside down right triangle formed between your vertical and your ray. The ray is the hypotenuse, the vertical is a side adjacent, and the top of the water is the opposite to your angle Θ. In order to find the diameter, follow some basic trig steps and simply double the side opposite. Thus you have; 1meter*tan(48.6°)=1.134meter*2=2.26meterswhich is your diameter.
Wiki User
∙ 12y agosolar flares
The surface area of a sphere with a diameter of 7cm is 153.9cm2
The surface area of a sphere with a diameter of 25 inches is about 1,963.5 square inches.
The surface area of a softball with a diameter of 12 is about 452.4 square units.
bend at surface and continued in the same direction in bulk of it...and again bend at emerging surface.........
The surface area of a sphere if its diameter is 9.65 cm equals 292.6cm2
The surface area of a sphere whose diameter is 18cm is 1018cm2
The surface area of a sphere with a diameter of 2.7 inches is about 23 square inches.
The surface area of a sphere with a diameter of 8 inches is 201.1 inches2
The surface area of a sphere with a diameter of 14 inches is about 615.8 square inches.
Surface area of a sphere = 4*pi*(diameter/2)^squared
Surface area of a sphere = 4*pi*radius2 radius = diameter/2