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Relativity Complete Questions and Answers with Verified Solutions 100% Correct | New Update 2025
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Relativity Complete Questions and Answers with Verified Solutions 100% Correct | New Update 2025
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Relativity Complete Questions and Answerswith Verified Solutions 100% Correct | New
Update 2025
A rocket is moving at 1/4 the speed of light relative to Earth. At the center of this
rocket, a light suddenly flashes. To an observer at rest on Earth
A) the light will reach the front of the rocket at the same instant that it reaches
the back of the back of the
rocket.
B) the light will reach the front of the rocket before it reaches the back of the
rocket. f the rocket.
C) the light will reach the front of the rocket after it reaches the back of the
rocket.the rocket. - ANSWER C) the light will reach the front of the rocket after
it reaches the back of the rocket.the rocket.
A rocket is moving at 1/4 the speed of light relative to Earth. At the center of this
rocket, a light suddenly flashes. To an observer at rest in the rocket
A) the light will reach the front of the rocket at the same instant that it reaches
the back of the back of the
rocket.
B) the light will reach the front of the rocket before it reaches the back of the
rocket. f the rocket.
C) the light will reach the front of the rocket after it reaches the back of the
rocket. - ANSWER A) the light will reach the front of the rocket at the same
instant that it reaches the back of the back of the rocket
,An astronaut in an inertial reference frame measures a time interval DELTA T
between her heartbeats. What will observers in all other inertial reference frames
measure for the time interval between her heartbeats
A) DELTA t
B) More than DELTA t
C) less than DELTA t
D) The answer depends on whether they are moving toward her or away from her
- ANSWER B) More than DELTA t
You are a passenger on u are a passenger on a spaceship. As the speed of the
spaceship increases, you would observe that
A) the length of your spaceship is getting shorter.shorter.
B) the length of your spaceship is getting longer.
C) the length of your spaceship is not changing - ANSWER C) the length of your
spaceship is not changing
A star is moving towards the earth with a speed at 90% the speed of light. It emits
light, which moves away from the star at the speed of light. Relative to us on
earth, what is the speed of the light moving toward us from the star?
a. 0.90 c
b. c
c. 1.1 c
d. 1.20 c
e. 1.9 c - ANSWER b. c
, The special theory of relativity predicts that there is an upper limit to the speed of
a particle. It therefore follows that there is also an upper limit on the following
properties of a particle.
A) the kinetic energy
B) the total energy
C) the linear momentum
D) more than one of these
E) none of these - ANSWER E) none of these
Astronaut Spud Nick is space traveling from planet X to planet Y at a speed of
0.60c relative to the planets, which are at rest relative to each other. When he is
precisely halfway between the planets, a distance of 1.0 light-hour from each one
as measured in the planet frame, nuclear devices are detonated on each planet.
The explosions are simultaneous in the frame of the planets. What is the
difference in the time of arrival of the flashes from the explosions as observed by
Spud?
a. 300 min
b. 150 min
c. 75 min
d. 0 min
e. 113 min - ANSWER e. 113 min
Astronaut Spud Nick is space traveling from planet X to planet Y at a speed of
0.60c relative to the planets, which are at rest relative to each other. When he is
precisely halfway between the planets, a distance of 1.0 light-hour from each one
as measured in the planet frame, nuclear devices are detonated on each planet.
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