A passive instrument primarily collects radiation reflected from Earth. Unlike active instruments, which send out their own signals and measure echoes, passive instruments detect natural radiation, such as sunlight that is reflected off the Earth's surface.
A passive instrument performs which of the following tasks?
Responses
collects radiation reflected from Earth
collects radiation reflected from Earth
records echo results from signals
records echo results from signals
accepts transmissions from Earth
accepts transmissions from Earth
sends transmissions to Earth
1 answer