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A. LCD Monitor
B. Magnetic Disk
C. Optical Disk
D. Mouse
Answer & Solution
Option: C
Explanation :The laser (Light Amplification by Stimulated Emission of Radiation) emits a beam of coherent, monochromatic directed light. Theodore H. Maiman built first laser in 1960. There are many applications for laser technology like in optical disk, surgery and skin treatments laser printers, laser Spectroscopy, barcode scanners, fiber-optic, etc..
Explanation :The laser (Light Amplification by Stimulated Emission of Radiation) emits a beam of coherent, monochromatic directed light. Theodore H. Maiman built first laser in 1960. There are many applications for laser technology like in optical disk, surgery and skin treatments laser printers, laser Spectroscopy, barcode scanners, fiber-optic, etc..
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