The size of the rain drop depends upon the conditions,particularly that of humidity ,temperature and the number of airborne nuclei such as dust particles,at the time of formation of the tiny water droplets .Millions of such water droplets only combine together to form raindrops.
For example,moderate number of nuclei in most updrafts tend to promote drops that grow large,because there is plenty of water for them and they cannot come down before they grow heavy enough to fall faster than they are lifted.On the other hand,if the nuclei are crowded,they compete with ech other and can only form small droplets .
Speed of fall also determines the size.In still air,big drops fall fast and hard.Drops that are about one centimetre in diameter reach speeds of around 30 Kms per hour,at which point,their own stream tears them into smaller drops unless they are partly frozen.This limits drop size.
In fact,the size of the drop is the main factor responsible for different kinds of rain.
2007-10-13 02:13:33
·
answer #1
·
answered by Arasan 7
·
0⤊
0⤋
Raindrop Size
2016-11-06 20:27:17
·
answer #2
·
answered by sovak 4
·
0⤊
0⤋
The size of a raindrop is mainly determined by the distance it must travel to the ground and the temperature in the atmostphere. If the raindrop has to travel a greater distance, many of the water molecules will disperse and become a gas on the way down, which makes the raindrop decrease in size.
The temperature plays a part in the size for a similar reason. If the temperature is cooler, the raindrop tends to stay in liquid form. However, if it is hot or humid, most of the raindrop will evaporate into the atmosphere.
2007-10-12 13:43:00
·
answer #3
·
answered by [×♣×] [Dαηïèllε] [×♣×] 3
·
0⤊
0⤋
I like Raindrops
2007-10-13 13:16:48
·
answer #4
·
answered by Pork and Beans 4
·
0⤊
0⤋
it particularly is a stability of forces. Raindrops start to variety by utilising water molecules condensing on a mud particle. skill is released whilst the water condenses (the warmth of vaporization) even though it additionally takes skill to create a liquid floor (the exterior rigidity). by utilising forming on a mud particle, the exterior is smaller and so is the exterior rigidity skill. as quickly as the drop starts off to variety, it extremely is going to become much less demanding for different molecules to attach because of the fact each and every extra molecule desires quite much less skill to enhance the exterior. you will possibly assume the drop to start falling as we communicate. quite, air currents interior the clouds keep the drop aloft because it grows. The greater valuable the air currents, the better the drop can enhance before it falls. for this reason severe storms, with their greater valuable air currents, tend to offer bigger drops. to boot to all this, there's a decrease to how vast a raindrop can get and that's dtermined by utilising the exterior rigidity. floor rigidity acts like a balloon wrapped around the drop. It holds it mutually. because of the fact the drop falls, the air resistance flattens it out and the exterior rigidity resists the knocking down. Falling raindrops seem greater like frisbees than teardrops. bigger drops fall quicker and generate greater desirable rigidity from the air resistance. If the rigidity overcomes the exterior rigidity, the drop breaks aside into smaller drops. the biggest drop it particularly is nice is approximately 5 mm in diameter.
2016-11-08 03:39:40
·
answer #5
·
answered by ? 4
·
0⤊
0⤋