A Radar Pulse Returns 5

question 20

Multiple Choice

A radar pulse returns 5.0 × 10−⁴ seconds after it is sent out,having been reflected by an object.What is the distance between the radar antenna and the object? (c = 3.00 × 10⁸ m/s)

• A)1.5E+5 m
• B)2.4E+5 m
• C)7.5E+4 m
• D)2.5E+4 m
• E)​4.3E+4 m