問題詳情
28. A sphere moves past an observer at 0.6c. Whatshape does the observer see?
(A)A sphere, slightly smaller than the sphere really is.
(B)A cone, slightly flattened.
(C)An ellipsoid, flattened in the direction of motion.
(D)A hypocycloid, flattened in the direction of motion.
參考答案
答案：C
難度：適中0.428571
統計：A(0),B(2),C(3),D(2),E(0)