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Why does falling rain drops are almost spherical?
Rain drops are formed in a process called coalescence, where smaller water droplets combine to form larger droplets. Surface tension causes the droplets to minimize their surface area, leading to a nearly spherical shape, which is the most efficient form for minimizing surface area.
How do rainbows get their colour?
Rainbows are formed when sunlight is refracted, or bent, by raindrops in the sky. The sunlight is then reflected inside the raindrop and separated into its different colors due to dispersion, creating the colorful arc we see as a rainbow.
What causes the colors in a rainbow?
Rainbows are caused by the refraction, dispersion, and reflection of sunlight in raindrops. The sunlight enters the raindrop, gets refracted, reflected off the inner surface of the drop, and then exits the drop. This process separates the different colors of light, creating the visible spectrum of a rainbow.
How does the rain and the sun make a rainbow?
Rainbows occur when sunlight is refracted, reflected, and dispersed in water droplets in the atmosphere. When sunlight enters a raindrop, it is refracted, reflected off the inside surface, and then refracted again as it exits the drop. This dispersion of light causes the different colors of the spectrum to separate and form a rainbow.
How rainbow occurs?
Rainbows occur when sunlight is refracted, or bent, through water droplets in the atmosphere, such as after a rain shower. This refraction causes the sunlight to separate into its different colors, creating the familiar arc of colors that we see in a rainbow.
Why does water stay on a penny?
Water stays on a penny due to its high surface tension. This property of water causes it to form droplets on non-absorbent surfaces like the smooth surface of a penny, instead of spreading out.
How many water droplets does it take to form a drop of rain?
5 droplets form a raindrop.
Is it true that When a drop of water breaks into two droplets of equal size the sum of the surface areas of the two droplets is equal to that of the original drop?
No.
What is the hypothesis of penny drop?
The hypothesis of the penny drop experiment is that the design of the container, the height from which the penny is dropped, and the amount of water in the container will affect whether the penny lands heads up or heads down.
Today you can expect the ground to get cold enough for vapor in the air to condense into water droplets which will be deposited on the ground?
Today's weather forecast indicates that the temperature is likely to drop to the dew point, causing water vapor in the air to condense into liquid droplets. These droplets will then settle on the ground in the form of dew.
About a million droplets make up a drop true or false?
A droplet is usually defined as being less than 0.5mm in diameter, like what you see in a fine spray. If the droplets were small enough, then I guess you could fit a million or so into one drop, but its more likely to vary - maybe in the thousands or ten-thousands.
How many droplets of water are there in one drop of water?
In the world of science, there are 20 drops of water in a milliliter. If you consider a drop to be what comes out of, say, a pipette, the size of that drop may vary. So does the definition of a drop: see the discussion at link below. The most common usage for a "drop" would be the metric drop, which is .05 ml. The older English usage of minim is slightly larger than the metric drop, but that usage is archaic. A liter does equal ~2.11 pints, so there are 1000/2.1133764 ml in a pint, which = 473.17 ml per pint. At 20 drops per ml, that means that there are 9463.5 drops in a pint.
If a big drop of radius R is formed by 1000 small droplets of water then find the radius of small drop?
If a big drop is formed by 1000 small droplets of water, the radius of the small drop can be calculated using the formula for the volume of a sphere. If the radius of the big drop is R, then the volume of the big drop is equal to 1000 times the volume of the small drop, given by the formula (4/3)pi(R^3) = 1000*(4/3)pi(r^3), where r is the radius of the small drop. By solving for r, we can find the radius of the small drop.
How do soapy water drops stay on a penny?
When soapy water is dropped on a penny, the surface tension of the water allows it to form a dome-like shape rather than immediately spreading out. The soap molecules reduce the surface tension of the water, allowing it to adhere to the penny and form a cohesive drop.
Where does drop of rain take place?
Drops of rain take place in the atmosphere when water vapor condenses into droplets. This process forms clouds, which eventually release the droplets as precipitation when they become heavy enough.
What are Droplets that become so large and heavy that they can no longer stay up in the air fall to earth's surface?
Droplets that become large and heavy enough to fall to the Earth's surface are known as raindrops. When these droplets accumulate and grow in size due to water vapor condensation in the clouds, they eventually become too heavy to be supported by the air currents and gravity pulls them down as precipitation.
How many drops of water can fit into a penny?
Ideally, everyone performing the experiment would include the following: - distilled waterThere are a lot of factors involved. The cohesion and adhesion ('stickiness') of water molecules can be effected by things like oils (on surface pennies from peoples' skin) and other contaminates on the penny. The size of the dropper or pipette will determine the size of each water droplet - the larger the drop, the fewer number of drops will fit on the penny. The manner in which the water is added to the penny is also a factor. Water has a cohesive nature (the molecules are kind of like magnets and are attracted to one another). Therefore, if the drop from the pipette is allowed to touch the water already on the surface of the penny, the water can be 'pulled' out of the dropper. When this happens, the size (volume) of the drop is not always the same - it could be a very small amount (which will result in a very large number of drops), or a large amount. Ideally, everyone performing the experiment would include the following: - distilled water - same type/size of calibrated dropper/pipette - same date of penny - penny cleaned as thoroughly as possible using same cleaning procedure - same 'dropping' procedure
