There's 3 significant figures
The atom carbon is the answer
There are different refractive errors that are common and some of them are:
- Nearsightedness (myopia) makes far-away objects look blurry.
- Farsightedness (hyperopia) makes nearby objects look blurry.
- Astigmatism can make far-away and nearby objects look blurry or distorted.
- Presbyopia makes it hard for middle-aged and older adults to see things up close
<h3>What is Refraction?</h3>
This refers to the study of light phenomena that deflects when it passes through a medium in an oblique manner to another medium of a varying density.
Hence, we can see that there are everyday examples of refraction in simple terms which occurs and some of them are:
- Glass
- Human eyes
- Ice crystals
- Pickle jar
- Microscope, etc.
Hence, we can see that your question is incomplete, so I gave you a general overview to help you get a better understanding of the concept of refraction.
Read more about refraction here:
brainly.com/question/15838784
#SPJ1
Answer:
the answers the correct one is C
Explanation:
In radioactive decay processes, a very important concept is the half-life time, which is the time it takes for the parent nuclei to decompose into child nuclei.
expressed this mathematically is
N = N₀ 
for the average life time
N₀ / 2 = N₀ 
T =
Analyzing this expression, the nuclei that decay are the so-called parents and the new nuclei called children appear.
when checking the answers the correct one is C
Answer:
GAMMA RAYS:
A photon emitted spontaneously by a radioactive substance also : a photon of higher energy than that of an X-ray.
USES OF GAMMA RAYS:
Gamma rays are used in medicine (radiotherapy), industry (sterilization and disinfection), and the nuclear industry. Shielding against gamma rays is essential because they can cause diseases to skin or blood, eye disorders, and cancers.
