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Doctors Medicines MCQs Q&A

  1. Sun
  2. Proxima Centauri
  3. Sirius
  4. Alfa Centauri
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Option 3 : Sirius

Sirius is the brightest star in the sky.

  • It is also known as Dog Star.

Proxima Centauri is a small and low mass red dwarf star.

Alfa Centauri is a triple star system closest to the Earth solar system.

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Related Questions

In the following question, the 1st and the last part of the sentence/passage are numbered 1 and 6. The rest of the sentence/ passage is split into four parts and named P, Q, R and S. These four parts are not given in their proper order. Read the sentence/ passage and find out which of the four combinations is correct. 1. Jupiter has 2.5 times more mass than all the other planets of the solar system combined and is 11 times as large as Earth in diameter. P. Jupiter is so large that scientists believe it almost became a star: as the gases and dust contracted to the form the planet, Q. But there was not enough mass available to create the temperature needed to start a fusion reaction such as that of the Sun. R. Thus, Jupiter has been cooling down ever since.  S. gravitational forces created tremendous pressure and the temperature inside the core—as high as tens of thousands of degrees. 6. Even so, Jupiter radiates about as much heat as it receives from the Sun.?
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