Universe and Solar System Test 2Study FirmAugust 19, 2021 Welcome to the Study Firm This is the 2nd test in the series Universe & Solar System. Universe and Solar System Test 2 October 24, 2021 Name 1. Largest Planet of the Inner Planets of the Solar system is –[IAS 1990]MercuryVenusEarthMars 2. The exact time taken by the earth to rotate one of its own axis is –[RBI 1991]24 hours23 hours 51 minutes23 hours 48 minutes 46 seconds23 hours 56 minutes 4 seconds 3. What is the black hole?[CDS 1999, 2001]Star that has no atmosphereStar with high temperatureContracted Star that has a high gravitational pullPulsating star 4. What type of orbit planets have while revolving around the sun?[IFS 1993]Parabolic and HyperbolicCircular and ParabolicElliptical and circularElliptical and Hyperbolic 5. Sun Spots are –[Railways 1994]The opposite surface of moon where no light reaches.Dark patches of sun surface where the temperature falls below 4050 K.Black spot on moonPolar region of Sun 6. Why pole star always was seen at the one point in the sky?[CDS 1993]pole star rotates with the same period of the Earthpole star has opposite to the sun from the earthThis is one another star from our galaxy.pole star lies in the axis of spin of the earth 7. What idea do we get from the light coming from stars?Density of StarsTemperature of StarsMass of the StarsSize of the stars 8. The time period of sun revolve around the galaxy is known as –light-yearsAstronomical yearCosmic YearParsec 9. What is a supernova?dying starA wormholespecial type of cometA bright asteroid of size equal to sun 10. Why the same side of the moon always faces the Earth?[Railway 1994]Moon rotates its own axis in 365 daysperiod of rotation of the moon on its axis and period of revolution around the earth is almost the same.Moon has no atmosphereMoon rotates around earth in 15 days. 11. Laws of planetary motion discovered by –[Asst Comm 2008]GalileoCopernicusKeplerNewton 12. Twelve constellations or Zodiac are referred to which of the following –[IAS 1989]A group of starsAll planet of solar systemIt is the symbol of Roman GodNone of these 13. What is the evidence that comets are a member of our solar system?Their properties of compositionsTheir Shape and sizeTheir shape of the orbitTheir structure of tails 14. Why planet Mercury is difficult to observed?Because glare of the sun hide itIt get hidden behind sunIt is very far from the earthNo sun light fall on it. 15. Which planet is most identical to earth by its day and tilt of axis?[IAS 2003, 1994]VenusMarsJupiterSaturn 16. Which among the planet has longest day?[IAS 2003 CDS 1994]MercuryEarthVenusMars 17. Which planet spin on its axis at fastest rate?EarthMarsVenusJupiter 18. Days and nights are equal throughout the globe when the sun is above:PolesEquatorTropic of CancerTropic of Capricorn 19. Latitude lines on a globe run fromnorth to southeast to westnorth to eastsouth to west 20. Latitude of South Pole is:0406090 Time is Up! Time's up
