NEET
- Exam
- NEET
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- Physics
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- Gravitation
NEET · Physics · Gravitation
What is the reason for the four-minute difference between a mean...
What is the reason for the four-minute difference between a mean solar day and a sidereal day, resulting in distant stars rising four minutes early every successive day?
Options
- AThe Earth's rotation speed fluctuates, causing variations in the time interval between two successive noon times.
- BThe Earth's orbit has a minor influence on the rotation speed, leading to a slight difference in the time it takes for the Sun to pass through the zenith point.
- CThe Earth's axial tilt contributes to the discrepancy between the time intervals of mean solar and sidereal days, resulting in a four-minute shift in the rising time of distant stars.
- DDue to the Earth's orbital motion and the resulting change in the Sun's apparent position, the Earth requires an extra four minutes to complete a full rotation, leading to a difference between mean solar and sidereal days.
Correct answer
D. Due to the Earth's orbital motion and the resulting change in the Sun's apparent position, the Earth requires an extra four minutes to complete a full rotation, leading to a difference between mean solar and sidereal days.
Step-by-step solution
Correct Option is : (D)
Due to the Earth's orbital motion and the resulting change in the Sun's apparent position, the Earth requires an extra four minutes to complete a full rotation, leading to a difference between mean solar and sidereal days.
Due to the Earth's orbital motion and the resulting change in the Sun's apparent position, the Earth requires an extra four minutes to complete a full rotation, leading to a difference between mean solar and sidereal days.