How Does LASER Light Differ from Ordinary White Light

question 60

Multiple Choice

How does LASER light differ from ordinary white light?
I. Laser light is hotter than white light.
II. Laser light's waves are in phase.
III. Laser light contains only one wavelength.
IV. Laser light is always red in color.

• A) II only
• B) I and II
• C) II and III
• D) I, II, and III
• E) II, III, and IV

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