Single correct option
Consider the following statements:
1. The Earth takes about 365 days to complete one rotation on its axis.
2. The Earth's axis is inclined at about 23.5 degrees to the perpendicular to its orbital plane.
Which of the statements given above is/are correct?
1. The Earth takes about 365 days to complete one rotation on its axis.
2. The Earth's axis is inclined at about 23.5 degrees to the perpendicular to its orbital plane.
Which of the statements given above is/are correct?
- A. 1 only
- B. 2 only
- C. Both 1 and 2
- D. Neither 1 nor 2
Show answer and solution
Answer: (B) 2 only
Statement 1 is wrong: one rotation takes about 24 hours (23 hours 56 minutes) and causes day and night; the 365 days are the period of revolution around the Sun. Statement 2 is correct: the tilt of 23.5 degrees from the perpendicular, together with revolution, produces the seasons and varying lengths of day. The common trap is mixing up rotation and revolution.
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