Displacement of sun with respect to earth is?
Correct answer: D. r
- A. r^2d
- B. 2πr
- C. 2r
- D. r
Explanation
The displacement of the Sun with respect to Earth can be described in two different ways: 1. Daily Apparent Motion: The Sun appears to move across the sky during the day due to Earth's rotation on its axis. This apparent motion is from east to west, and it takes approximately 24 hours for the Sun to complete one full circuit around the sky. This displacement of the Sun is a result of Earth's rotation and is responsible for the day-night cycle. 2. Annual Apparent Motion: Over the course of a year, the Sun's position in the sky changes due to Earth's orbital motion around the Sun. The Earth's orbit around the Sun is not a perfect circle but an ellipse. Therefore, the distance between Earth and the Sun changes slightly throughout the year. This causes the Sun's apparent position against the background stars to shift gradually, resulting in the changing seasons. During the year, Earth's axial tilt also plays a crucial role. As the Earth orbits the Sun, the tilt of its axis causes the Sun's rays to strike different latitudes at varying angles, leading to the changing seasons. For example, when the Northern Hemisphere is tilted towards the Sun, it experiences summer, while the Southern Hemisphere experiences winter. Six months later, the situation is reversed. It's important to note that while we perceive the Sun's motion as displacement from the Earth's perspective, in reality, the Sun is stationary in its position, and the apparent motion is a result of Earth's rotation and orbital motion.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Force and Motion
Displacement, velocity and acceleration describe motion, including the horizontal and vertical components of projectile motion. The chapter connects these quantities with Newton's laws, momentum and impulse, then applies conservation of momentum to collisions, distinguishing elastic collisions from inelastic ones.
Practise Force and Motion
1,416 free Force and Motion MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 16 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Force and Motion questions
If two objects of equal masses 'm' are moving towards each other with the same speeds 'v' then what will be the total final momentum after elastic head-on collision?
For a straight trajectory of a particle instantaneous velocity is
if a car starts from rest and reaches 20 m/s velocity in 10 s then acceleration is:
If we are standing in a bus and the driver applies a brake then we feel:
The oscillating object overshoots the rest position due to:
If we are moving with a constant velocity frame, then the inertial state is the same as: