Why can light from a blue laser form a narrower beam than light from a red laser

Question

Why can light from a blue laser form a narrower beam than light from a red laser? Question 4 options: a) The size of the beam waist depends largely on the wavelength of the light. Blue light has a shorter wavelength than red light. b) The size of the beam waist depends largely on the frequency of the light. Blue light has a higher frequency than red light. c) The size of the beam waist depends largely on the energy of the light. Blue light has a higher energy photons than red light. d) All of the above. Save

Explanation / Answer

D

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