Question

A passive sensor uses:

• A. Sun as source of energy
• B. Flashlight as a source of energy
• C. Its own source of energy
• D. Doesn't need any source of energy

Hint:

Remember: \[ \boxed{ \begin{aligned} \text{Passive Sensor} &\rightarrow \text{Sun's energy} \text{Active Sensor} &\rightarrow \text{Own energy source} \end{aligned} } \]

Answer 1

The Correct Option is A