A Ray of Light Consisting of Blue Light (Wavelength 480

question 24

Multiple Choice

A ray of light consisting of blue light (wavelength 480 nm) and red light (wavelength 670 nm) is incident on a thick piece of glass at 80°.What is the angular separation between the refracted red and refracted blue beams while they are in the glass? (The respective indices of refraction for the blue light and the red light are 1.4636 and 1.4561.)

• A) 0.27°
• B) 0.33°
• C) 0.36°
• D) 0.46°
• E) 0.54°

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