At the point of incidence where the ray strikes the mirror, a line can be drawn perpendicular to the surface of the mirror. This line is known as a normal line (labeled N in the diagram). The normal line divides the angle between the incident ray and the reflected ray into two equal angles. The angle between the incident ray and the normal is known as the angle of incidence. The angle between the reflected ray and the normal is known as the angle of reflection.
Even if the water were to be cooled from the bottom, the coldest water would float to the top and when the whole pond became 0Â°C the ice would float to the top as it formed. In some cases where rocks are below the freezing point (exposed to the air part of the time, ice can form and stick to the rocks under water.
Report Abuse. The answer to your question really depends on three things: how much water you have, how cold it is to start out, and how cold the things around it are. Water actually freezes when it gets to 32 degrees Fahrenheit (0 degrees Celsius), but the time it takes to get there may be different.Let's start with the first.If you take two glasses, and fill one with a tiny bit of water, and the other about halfway, then put them both in the freezer, the one with less water will freeze first (you can try this at home, but I recommend using plastic cups and not glass ones). Now let's move on to the second part.eport Abuse. The answer to your question really depends on three things: how much water you have, how cold it is to start out, and how cold the things around it are. Water actually freezes when it gets to 32 degrees Fahrenheit (0 degrees Celsius), but the time it takes to get there may be different.