Which of the following statement is TRUE of ultraviolet, visible and infra-red rays?
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- A They are all electromagnetic waves with the same wavelength
- B Ultra-violet rays have shorter wavelengths than infra-red rays and produce flourescence
- C Infrared rays have shorter wavelength than visible light and produce the sensation of heat
- D The wavelenghts increase in the sequence: visible, ultra-violet, infra-red
Correct Answer: Option B
Explanation:
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