Which of the following statements are true? 1. The proper time interval is the s

Question

Which of the following statements are true?

1. The proper time interval is the shortest time interval measured in any inertial reference frame.

2. The length along the direction of motion of a moving object is shorter than when the object is at rest.

3. The proper time interval for an event depends upon the speed of the observer.

4. The proper length of a meter stick is always one meter.

5. The total kinetic energy of a body is limited, since its speed can never exceed 'c'.

6. Relativistic effects become important in our calculations (for example, more than a 1% effect) only when speeds are close to the speed of light in vacuum.

7. All moving clocks runs slow.

Explanation / Answer

1. The proper time interval is the shortest time interval measured in
any inertial reference frame. ----> false Bcoz of lorentz factor, t = gamma to

2. The length along the direction of motion of a moving object is
shorter than when the object is at rest.

True   as   L = Lo/gamma

3. The proper time interval for an event depends upon the speed of the observer.

True , due to relativistic approach, time intervel depends on relative speeds

4. The proper length of a meter stick is always one meter. False ( it is = gamma Lo)

5. The total kinetic energy of a body is limited, since its speed can
never exceed 'c'.   True

6. Relativistic effects become important in our calculations
(for example, more than a 1% effect) only when speeds are close
to the speed of light in vacuum. ) true

7. All moving clocks runs slow. -----false, the run fast

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

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