2). The farther a planet is from the sun, the longer it takes to orbit the sun. Mercury ... 88 days. Earth ... 365 days. Jupiter ... 12 years. Neptune ... 165 years.
3). Mercury & Venus ... no moons Earth - 1 Mars - 2 Jupiter - more than 65
4). Mercury ... cratered, no atmosphere Venus ... cratered, thick cloudy atmosphere Mars ... dry, cratered, slight atmosphere, like 1% or Earth's
Jupiter, Saturn, Uranus, Neptune We can't see any surface. If any of them even HAS a surface, it's thousands of miles under a thick atmosphere of methane gas.
5). Missing from the list
6). Here's a list from the biggest planet to the smallest one. The numbers in parentheses are the radius of the planet -- half of the diameter:
Jupiter (69,911 km / 43,441 miles) – 1,120% the size of Earth Saturn (58,232 km / 36,184 miles) – 945% the size of Earth Uranus (25,362 km / 15,759 miles) – 400% the size of Earth Neptune (24,622 km / 15,299 miles) – 388% the size of Earth Earth (6,371 km / 3,959 miles) Venus (6,052 km / 3,761 miles) – 95% the size of Earth Mars (3,390 km / 2,460 miles) – 53% the size of Earth Mercury (2,440 km / 1,516 miles) – 38% the size of Earth
7). At least seven of the planets rotate in the same direction. There's something different about one of them ... it may be Uranus but I'm not sure. You'll have to look this up.
8). Saturn has the famous rings, that you can almost see with only binoculars. Spacecraft sent to observe the outer planets have detected very thin rings around Uranus and Neptune.
9). Included in #6.
10). I don't have complete info. Generally, the closer the planet is to the sun, the hotter it is. But there are a few exceptions. I think Venus ... the second one from the sun, is actually hotter than Mercury.
11). Just about every language has its own name for each planet.
12). "Terrestrial" means "like Earth" ("Terra"). The terrestrial planets are the ones that have solid surfaces and are made of rock. Mercury, Venus, Earth, and Mars.
13). "Jovian" means "like Jupiter". Either no solid surface, or very small, inside a big deep gas ball. Jupiter, Saturn, Uranus, Neptune.
Here we apply the law of the concept of reflection then we get the final answer easily.
The angle of incident = angle of reflection
Then, the Angle of the incident =60°
What is reflection?
Reflection is the phenomenon of light rays returning to the source after striking an obstruction.
It resembles the way a ball bounces when we toss it on a hard surface.
Some of the light rays that strike an item are reflected, some of them travel through it, and the remainder are absorbed by the object.
The given values are:Light from a monochromatic source,= 560 nm
The angle of incidence,= 60°
The surface of fused quartz (n),= 1.56
When a light ray does exist on a flat surface, the law or idea of reflection should apply since it includes both the reflected and "normal" light rays at the mirror surface.
According to the above law,Angle of incident = angle of reflection
Given that, A basesball is dropped from 100 meters above the surface of the earth. If the same baseball was dropped from 100 meters above the surface of the moon, it will take more time to hit the ground as compare to the ball dropped on earth. This is moon's gravity is one-sixth of that of earth. Object falling on earth possess more force of attraction. So it will reach the earth in lesser time. At moon the force of attraction is low compare to that of earth. Object will take more time to reach the surface.
