Alpha radiation cannot get pass through our body as it cannot penetrate through things. Beta can penetrate through things better than alpha. So if alpha is inside our body then it cannot get outside our body and therefore it becomes dangerous.
A Laser (Light Amplification by Stimulated Emission of Radiation) is "coherent" light. That means that all of the light is traveling in the same direction. Unlike a lightbulb, flashlight, or other "normal" light source where the light is going in all directions out from the center of the source, a Laser's light is all going in a straight line away from the source. This is why you cannot see a laser until it hits something (dust particles in the air, for example), and also why looking directly into a Laser (yes, even one of the cheap pointer types) can cause permanent damage to your eye.
Spectroscope is a useful qualitative analysis tool because is it can analyze wavelengths what humans can't see especially infrared and ultraviolet radiation. Also since light has a different color of wavelengths; Scientist can find useful information such as chemical elements present at the source of the light.
The Source mean ..................
Division is the usual source.
It depends on what source the line 3 refers to!It depends on what source the line 3 refers to!It depends on what source the line 3 refers to!It depends on what source the line 3 refers to!
Gamma
In internal radiation therapy a source of radioactivity is surgically placed inside the body near the cancer
It depends on the strength of the active source. Alpha radiation is dangerous if it gets inside your body, gamma will penetrate your clothing and body if energetic enough, so it's difficult to give an answer that covers all cases. Health physicists have to consider each type of radiation on its merits.
Radiation is dangerous ... Too much kills but even small amounts may eventually cause cancer. Radiation levels decrease as does gravity with the square of the distance from the source. At twice the distance, the rad level becomes 1/4 th as much.
alpha radiation is more dangerous than beta or gamma if ingested or inhaled because its power to ionize (or to disrupt atoms) is 20x than that of beta and gamma. but if the source is outside the body or at a distance gamma radiation is much dangerous because it could penetrate thick walls.
Infrared radiation only affects the surface of the skin... x-rays penetrate much further.
Infrared radiation only affects the surface of the skin... x-rays penetrate much further.
the fundemental source of electromagnetic radiation is an ionic explosion
Cosmic radiation External terrestrial and internal radiation
The source of cosmic background radiation filled the entire universe.
diagnostic radiation
First of all, "radiation" is any energy that flows out from a source. There is radiation coming from your body if it is cool out: This type is called, "Heat". There is another type of radiation coming from a candle: you can see it, and it is called, "Light". X-ray machines radiate, well, 'X-rays'. There is electrostatic radiation coming out of older TV sets: It's the same thing as when you touch something and get a little shock. It is not dangerous. Atomic radiation, or nuclear radiation comes from radio-active sources like uranium and radium. This one is more dangerous than the others because it is usually very strong and can 'cook' you quickly, much like a microwave oven can cook flesh.