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A rocket ship leaves earth at a speed of 3/5 c.When a clock on the rocket says 1 hour has elapsed, the rocket ship sends a light signal back to earth. Choose the correct statement (s)
  • a)
    According to the earth clock the signal was sent at 75 minutes after departure of the rocket 
  • b)
    According to the earth clock, the signal reached earth 120 minutes after the rocket’s departure 
  • c)
    According to earth clock, the signal was sent 60 minutes after departure of rocket. 
  • d)
    According to the rocket observer the signal reached earth 150 minutes after the rocket left. 
Correct answer is option 'A,B,D'. Can you explain this answer?
Verified Answer
A rocket ship leaves earth at a speed of3/5 c.When a clock on the rock...
Rocket runs slow so earth clock reads

 
∴  Earth clock read 1 hr 15 minutes.
By the earth observer, the rocket is now at a distance of   hours away.
∴ 
light signal will take 3/4 hour to return to earth.
Since, the signal left 5/4 hr after the departure
∴  light signal reaches 5/4 + 3/4 = 2hrs later.
Earth clock runs slow (in the reference frame of the rocket)
The correct answers are: According to the earth clock the signal was sent at 75 minutes after departure of the rocket, According to the rocket observer the signal reached earth 150 minutes after the rocket left., According to the earth clock, the signal reached earth 120 minutes after the rocket’s departure
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Most Upvoted Answer
A rocket ship leaves earth at a speed of3/5 c.When a clock on the rock...
B) According to the earth clock, the signal reached earth 120 minutes after the rocket
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A rocket ship leaves earth at a speed of3/5 c.When a clock on the rocket says 1 hour has elapsed, the rocket ship sends a light signal back to earth. Choose the correct statement (s)a)According to the earth clock the signal was sent at 75 minutes after departure of the rocketb)According to the earth clock, the signal reached earth 120 minutes after the rocket’s departurec)According to earth clock, the signal was sent 60 minutes after departure of rocket.d)According to the rocket observer the signal reached earth 150 minutes after the rocket left.Correct answer is option 'A,B,D'. Can you explain this answer?
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A rocket ship leaves earth at a speed of3/5 c.When a clock on the rocket says 1 hour has elapsed, the rocket ship sends a light signal back to earth. Choose the correct statement (s)a)According to the earth clock the signal was sent at 75 minutes after departure of the rocketb)According to the earth clock, the signal reached earth 120 minutes after the rocket’s departurec)According to earth clock, the signal was sent 60 minutes after departure of rocket.d)According to the rocket observer the signal reached earth 150 minutes after the rocket left.Correct answer is option 'A,B,D'. Can you explain this answer? for Physics 2024 is part of Physics preparation. The Question and answers have been prepared according to the Physics exam syllabus. Information about A rocket ship leaves earth at a speed of3/5 c.When a clock on the rocket says 1 hour has elapsed, the rocket ship sends a light signal back to earth. Choose the correct statement (s)a)According to the earth clock the signal was sent at 75 minutes after departure of the rocketb)According to the earth clock, the signal reached earth 120 minutes after the rocket’s departurec)According to earth clock, the signal was sent 60 minutes after departure of rocket.d)According to the rocket observer the signal reached earth 150 minutes after the rocket left.Correct answer is option 'A,B,D'. Can you explain this answer? covers all topics & solutions for Physics 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A rocket ship leaves earth at a speed of3/5 c.When a clock on the rocket says 1 hour has elapsed, the rocket ship sends a light signal back to earth. Choose the correct statement (s)a)According to the earth clock the signal was sent at 75 minutes after departure of the rocketb)According to the earth clock, the signal reached earth 120 minutes after the rocket’s departurec)According to earth clock, the signal was sent 60 minutes after departure of rocket.d)According to the rocket observer the signal reached earth 150 minutes after the rocket left.Correct answer is option 'A,B,D'. Can you explain this answer?.
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