Q17 · 2024 · Paper 1Simple familiar1 mark
QUESTION 17
A person on Earth experiences a time period of 15 years. Approximately how much time will have passed for a passenger on a spaceship travelling at 0.7 c relative to Earth during that time?
(A)
8 years
(B)
11 years
(C)
21 years
(D)
27 years
WORKED SOLUTION
1 markAnswer B
ANSWER
B
Worked solution
The 15 years is the dilated Earth-frame interval. With , , so the spaceship proper time is years. Option B.
Selects option B.
Worked explanation by QCE Vault; correct option verified against the QCAA answer key.