Select your answer:

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Laser in Medicine › ViewThe coherent nature of light from LASER is due to
A. Spontaneous emission
B. Stimulated Emission
C. Absorption
D. Pumping
Vision and Hearing Defects › View
Which of the following is a common cause of color blindness?
A. Prolonged exposure to bright lights.
B. Genetic mutations affecting the cones in the retina.
C. Age-related degeneration of the optic nerve.
D. Frequent use of digital screens.