Usually Solar System is the part of subject social science which we used to study back then in our school and hardly remember anything after passing our school. But this subject plays a very important part of the G.K questions of many exams. Let's look at the few of most important questions that will help you score you good in exams Q. How to calculate the speed of the planet revolving around the sun? A. Capler Q. Which is the biggest planet in solar system? A. Jupiter Q. Who is the originator of Solar system? A. Sun Q. How many planetarium in the universe? A. 89 Q. Who discovered solar system? A. Copernicus Q. What is the temperature of Sun? A. 6000 degree Celsius (approx) Q. Which gasses form the composition of Sun? A.. Hydrogen and Helium Q. Which is the nearest planet to sun? A. Mercury Q. Which planets don't have their satellites? A.Mercury and Venus Q. Which planet is named as sister of Earth? A. Venus Also Read: Do you want to make a career behind the camera? These are your best institutes ! Apply for SBI PO now! Central Bank of India recruits for the post of Office Assistants