An EM wave that invisible to the human eye but can detect it as heat. What type of wave is discovered by Sir Frederick Williams Herschel?
A. Infrared
B. Microwave
C. Ultraviolet
D. X-ray
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An EM wave that invisible to the human eye but can detect it as heat. What type of wave is discovered by Sir Frederick Williams Herschel?
A. Infrared
B. Microwave
C. Ultraviolet
D. X-ray
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Answer:
A.
Explanation:
The Infrared wave was discovered by Sir Frederick Williams Herschel in 1800.