A Physicist Is Asked to Design an Infrared System to Detect

question 156

Multiple Choice

A physicist is asked to design an infrared system to detect human beings (at a normal temperature of 310 K) in darkness. What would the wavelength of peak sensitivity of the equipment need to be?

• A) 9.35 \(\mu\)m
• B) 0.935 \(\mu\)m
• C) 0.00094 \(\mu\)m
• D) 90 \(\mu\)m

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