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CSS Solved Papers
Physics Chemistry

Engineering :: Energy Conversion

  Visible spectrum of light has wavelength in the range
[A]. 10 to 40 A[B]. 100 to 400 A
[C]. 4000 to 7000 A[D]. 14,000 to 17,000 A
[E]. 40,000 to 70,000 A    

Answer: Option C
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