Easy
What is the wavelength range of visible light in $cm$?
- A$4 \times 10^{-7}\; cm$ to $8 \times 10^{-7}\; cm$
- B$4 \times 10^{-5}\; cm$ to $8 \times 10^{-5}\; cm$
- C$4 \times 10^{-9}\; cm$ to $8 \times 10^{-9}\; cm$
- D$400\; cm$ to $800\; cm$
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