Question map
Not attempted Correct Incorrect ★ Bookmarked
Loading…
Q63 (NDA-II/2010) Science & Technology › Basic Science (Physics, Chemistry, Biology) › Astronomy and astrophysics Answer Verified

An annular solar eclipse occurred during January 2010 with duration of annularity around 12 min. It is predicted that such long annular duration will not occur till the year 3043. Such prediction is possible due to

Result
Your answer: —  Â·  Correct: C
Explanation

The prediction of solar eclipses and their specific durations is a matter of celestial mechanics, which is fundamentally governed by Newton's theory of gravitation. Newton's laws allow for the precise calculation of the orbits of the Earth and Moon, accounting for their non-circular and non-planar paths [c2]. The annular eclipse of January 15, 2010, reached a maximum duration of approximately 11 minutes and 8 seconds, a feat of orbital alignment that will not be surpassed until December 23, 3043 [t1][t2]. While Einstein's theory of relativity was famously validated during a 1919 eclipse by measuring light bending [t6][t8], the routine prediction of eclipse timing and duration relies on Newtonian mechanics [t7]. These calculations involve the relative distances and apparent sizes of the Sun and Moon as they move through their respective gravitational paths [c5][t9].

Sources

  1. [1] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 19: The Motions of The Earth and Their Effects > Why not every full moon day a lunar eclipse? Why not every new moon day a solar eclipse? > p. 266
  2. [2] https://eclipse.gsfc.nasa.gov/OH/OH2010.html
  3. [3] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 19: The Motions of The Earth and Their Effects > 19.3. Eclipse > p. 257
How others answered
Each bar shows the % of students who chose that option. Green bar = correct answer, blue outline = your choice.
Community Performance
Out of everyone who attempted this question.
50%
got it right
✓ Thank you! We'll review this.

SIMILAR QUESTIONS

IAS · 1996 · Q125 Relevance score: -6.51

‘Diamond Ring’ is a phenomenon observed

NDA-I · 2011 · Q45 Relevance score: -7.03

Which of the following statements is/are correct ? 1. In comparison to the Jupiter, planet Earth displays eclipses more frequently 2. On Mars only partial solar eclipses are possible Select the correct answer using the code given below :

CAPF · 2019 · Q66 Relevance score: -7.79

If the eatorial plane of earth is NOT inclined to its orbit, then

CDS-I · 2016 · Q28 Relevance score: -7.85

Which of the following statements is / are correct ? 1. The earth is nearest to the Sun at Perihelion, which generally occurs on January 3 2. The earth is farthest away from the Sun at Perihelion, which generally occurs on July 4 3. The earth is farthest away from the Sun at Aphelion, which generally occurs on July 4 4. The earth is nearest to the Sun at Aphelion, which generally occurs on January 3 Select the correct answer using the code given below :

CDS-I · 2011 · Q31 Relevance score: -7.86

A devastating Cloud Burst swept over Leh on August 2010. Which one of the following statements with regard to Cloud Burst is not correct?