A ‘super bird’ of proper length 1.0 m flies past a stationary observer on the Earth’s…
PHYSICS · Single correct · A Level · Physics · Turning points in physics · Turning points in physics
Problem
A ‘super bird’ of proper length 1.0 m flies past a stationary observer on the Earth’s surface at a speed of 0.8c. The observer measures the time it takes for the super bird to pass by to be
(1) 1.6 ns.
(2) 2.5 ns.
(3) 4.2 ns.
(4) 6.9 ns.