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What are The Stars?
The star is made of dust and gas in space.
Essentially it has many stages they are
1.black hole
2.nuetron star
3.supernova
4.red giant stage
Our solar system having a big star name sun which is attracting 8 other planets with its gravity.
It has an expected age of 10 billion years.
What are the applications of Heterojunction Laser? Applications of Heterojunction laser: a. Into consumer electronics, semiconductor lasers are utilized in VCD/CD /DVD playe
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