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Beyond Earth — Hard

15 questions 18 min PYQ-grade reasoning

  1. Q1. Consider the following objects: I. Comets II. Asteroids III. Sirius Which of these is NOT a member of our Solar System?

  2. Q2. Assertion (A): Pluto is no longer counted among the planets of the Solar System. Reason (R): In 2006, the International Astronomical Union (IAU) redefined the requirements of an object to be called a planet, and Pluto was reclassified as a dwarf planet.

  3. Q3. Assertion (A): Venus is hotter than Mercury, although Venus is farther from the Sun. Reason (R): The atmosphere of Venus traps heat, which significantly changes its temperature.

  4. Q4. Consider the following statements about the night-sky bodies. I. The Pole Star is not very bright. II. The Pole Star cannot be seen from the southern hemisphere of Earth. III. A bright Moon makes it harder to identify the Pole Star. Which statements are correct?

  5. Q5. An artist's diagram of the Solar System shows the planets in the order: Sun, Mercury, Venus, Mars, Earth, Jupiter, Uranus, Saturn, Neptune. Identify the corrections needed.

  6. Q6. Match each Indian nakshatra with the star or star-group it denotes: I. Ardra — Betelgeuse in Orion II. Krittika — Aldebaran in Taurus III. Rohini — Pleiades in Taurus Which mapping(s) is/are correct?

  7. Q7. Halley's Comet was last seen in 1986 and appears every 76 years. In which year is it expected to be visible next?

  8. Q8. Consider the following statements about Chandrayaan-3. I. It was launched in July 2023 and soft-landed on the Moon on 23 August 2023. II. India became the first country to land near the Moon's south pole through this mission. III. The mission carried the Vikram lander and the Pragyan rover. Which statements are correct?

  9. Q9. Arrange the following night-sky objects in decreasing order of apparent brightness, as described in the chapter: I. Sun II. Moon III. Venus IV. Sirius

  10. Q10. Consider the following statements. I. In general, the farther a planet is from the Sun, the colder it is. II. The atmosphere of a planet can trap heat and change its temperature. III. Mercury is hotter than Venus because Mercury is closer to the Sun. Which statements are correct?

  11. Q11. Consider the following statements about the stars nearest to us. I. The Sun is the star closest to us. II. After the Sun, the next nearest star is Proxima Centauri. III. Proxima Centauri is about 269000 au from us. Which statements are correct?

  12. Q12. Assertion (A): Jupiter, Saturn, Uranus and Neptune have large flat ring-like structures around them. Reason (R): These four outermost planets are mostly made of gas and ice.

  13. Q13. Consider the following statements about natural satellites of planets. I. Earth has one Moon. II. Mars has two moons. III. Jupiter, Saturn, Uranus and Neptune each have a large number of moons. Which statements are correct?

  14. Q14. Rohan in Rampur identifies the Big Dipper, then locates the two stars at the end of its cup. He measures the gap between them as roughly the width of his finger held at arm's length. About how far in the same direction should he extend his imaginary line to reach the Pole Star?

  15. Q15. Consider the following statements about galaxies and the Universe. I. A galaxy has millions to billions of stars. II. Our Solar System is part of the Milky Way Galaxy. III. The Milky Way Galaxy is the only galaxy in the Universe. Which statements are correct?

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