Answer: This is all to do with the refraction of light and real and apparent depth . As the light from the fish leaves the water it bends away from the normal (right angled line to the surface). This makes the fish appear to be nearer to the surface.
Why is the actual fish seems to exist at the apparent fish location under the water?
Light rays reflected from the fish are refracted at the surface of the water , but the eyes and brain trace the light rays back into the water as thought they had not refracted, but traveled away from the fish in a straight line. This effect creates a “virtual” image of the fish that appears at a shallower depth.
Why the position of fish in a pond is not same as it is observed from outside?
This is because a light ray coming from the fish inside water when suffers refraction at the water-air interface, it bends away from the normal at the point of incidence . ... That is why, the fish seems to be nearer than it really is.
Which wave behavior best explains why the person sees the fish in the apparent position and not in the actual position?
Light coming from the fish refracts (changes direction) when it hits the surface. A person above the water sees the apparent position of the fish closer to the surface than the real position of the fish.
Why is the position of fish in the water?
Light rays reflected from the fish are refracted at the surface of the water , but the eyes and brain trace the light rays back into the water as thought they had not refracted, but traveled away from the fish in a straight line. This effect creates a “virtual” image of the fish that appears at a shallower depth.
Why do fish look bigger underwater?
The surface of a water drop curves outward to make a dome. This outward, or convex, curvature bends light rays inward. ... The surface of a smaller drop is even more curved , creating a bigger change in direction of the light ray. The result is a larger magnification.
Why does a pencil inside a glass of water appears to be broken because of?
A:It all has to do with the fact that light travels more slowly in water than it does in air , and that causes the light to bend when it goes from water to air, or vice versa. ... And that makes the pencil look like it bends slightly where it enters the water.
Do you aim above or below a fish?
You always want to aim below the fish because the refraction of light makes the fish appear closer to the surface than they are. The distance that you aim depends on how far away you are from the fish, and how deep the fish is in the water.
Why does the bottom of a pond look less deep than its real depth?
The refraction of light at the surface of water makes ponds and swimming pools appear shallower than they really are. The bottom of the stick seems to be nearer the surface of the water than it really is. ...
Do fish look smaller underwater?
Fish look really big underwater , and big fish look positively huge when viewed underwater. ... Since you would still be viewing the fish in water through a space of air, the magnification illusion is still in play.
What is the most important factor for having a successful aquarium?
Maintaining good water quality is the single most important thing that an aquarium owner can do to ensure the health of their fish. Poor water quality is probably responsible for more aquarium fish deaths than any other factor. This article will cover the basics of maintaining water quality in your tank.
What is the temperature in a pond?
Summer. The ideal temperature for pond water in the fall is around 68 to 74 degrees, Fahrenheit . When the water is around 85 degrees, Fahrenheit and above, the pond water loses most of its ability to contain dissolved oxygen. In addition, high temperatures can cause pond fish to be more active, using up a lot of oxygen ...
How do I know if there is enough oxygen in my pond?
Signs that Your Pond Doesn’t Have Enough Oxygen
Fish will come to the surface to breathe. You’ll either see the fish on the surface of the pond , struggling for oxygen, or near any water features. They’ll appear restless. Your pond will give off a foul odor.
At what position will you hear the highest frequency?
The highest frequency of sound will be heard at position C , while the child is swinging forward. Assuming the child is moving with SHM, then the highest speed is at the equilibrium point, point C. And to have an increased pitch, the relative motion of the source and detector must be towards each other.
Why the spear did not hit the fish?
If the fisherman aims at the center of the fish the spear will miss! As the light from the fish leaves the water it bends away from the normal (right angled line to the surface). This makes the fish appear to be nearer to the surface and further away because your eye assumes light travels in a straight line.
What is the incident ray?
An incident ray is a ray of light that strikes a surface . The angle between this ray and the perpendicular or normal to the surface is the angle of incidence. The reflected ray corresponding to a given incident ray, is the ray that represents the light reflected by the surface.
