a) Which of the following is true about what a moving observer sees compared to

Question

a) Which of the following is true about what a moving observer sees compared to a stationary observer?
1. If a meterstick is in the stationary observer's frame of reference, the moving observer sees it as more than a meter long.
2. If a meterstick is in the stationary observer's frame of reference, the stationary observer sees it as more than a meter long.
3. If a meterstick is in the stationary observer's frame of reference, the moving observer sees it as less than a meter long.
4. If a meterstick is in the stationary observer's frame of reference, the stationary observer sees it as less than a meter long.

b) In the equations for Relativity, the commonly used symbol represents which of the following?
1. = v/c
2. = c/v
3. = v2/c
4. = cv

c) Which of the following is true about the phenomenon of time dilation?
1. A person on a moving spaceship thinks someone on Earth is aging more slowly but a person on Earth thinks a person on the spaceship is aging more slowly.
2. A person on a moving spaceship thinks someone on Earth is aging more rapidly but a person on Earth thinks a person on the spaceship is aging more rapidly.
3. A person on a moving spaceship thinks someone on Earth is aging normally but a person on Earth thinks a person on the spaceship is aging more slowly.
4. A person on a moving spaceship thinks someone on Earth is aging more slowly but a person on Earth thinks a person on the spaceship is aging normally.

Explanation / Answer

a) Which of the following is true about what a moving observer sees compared to a stationary observer?

Using Concepts of relativity,
L = Lo * sqrt(1 - v^2/c^2)
So if the observer is moving with speed somewhat near the speed of light, then he would expreience Length contraction

Therefore, Correct option is :-
3. If a meterstick is in the stationary observer's frame of reference, the moving observer sees it as less than a meter long.

b) In the equations for Relativity, the commonly used symbol represents which of the following?
1. = v/c

c) Which of the following is true about the phenomenon of time dilation?

3. A person on a moving spaceship thinks someone on Earth is aging normally but a person on Earth thinks a person on the spaceship is aging more slowly.

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.