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Special relativity — Question 30

Original QCE Vault practice · 1 mark

Q30 · Practice questionComplex familiar1 mark

QUESTION 30

A spacecraft clock measures a proper time interval of

5.0\,\mu\text{s}

. The spacecraft moves at

0.80c

relative to Earth. What interval is measured on Earth?

(A)

3.0\,\mu\text{s}

(B)

4.0\,\mu\text{s}

(C)

6.25\,\mu\text{s}

(D)

8.33\,\mu\text{s}

ABCD

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