If the Wavelength of a Monochromatic Source Is 692 Nm

question 14

Multiple Choice

If the wavelength of a monochromatic source is 692 nm in vacuum,what is the wavelength from the same source when it passes through a liquid where the speed of light is 2.80 × 10⁸ m/s? (c = 3.00 × 10⁸ m/s)

• A) 1940 nm
• B) 741 nm
• C) 82 nm
• D) 646 nm
• E) ​603 nm

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