Properties of Laser Light 20 min Score: 0 Attempted: 0/20 Subscribe 1. The term LASER stands for: (A) Light And Sound Energy Radiation (B) Light Action by Small Emission of Radiation (C) Light Amplified by Sound Energy Radiation (D) Light Amplification by Stimulated Emission of Radiation 2. Laser light is: (A) Polychromatic (B) Monochromatic (C) White light (D) Multicolored 3. Laser light is highly: (A) Incoherent (B) Coherent (C) Scattered (D) Diffused 4. Laser light is: (A) Directional (B) Non-directional (C) Diffused (D) Scattered 5. The coherence of laser light means: (A) Waves change color (B) Waves have different phases (C) Waves travel in different directions (D) All waves have the same phase 6. Laser light is: (A) Medium intensity (B) Low intensity (C) Diffused intensity (D) High intensity 7. Laser light can travel long distances without: (A) Changing direction (B) Losing color (C) Changing speed (D) Spreading much 8. Which of the following is a property of laser light? (A) All of the above (B) Coherent (C) Directional (D) Monochromatic 9. Laser light is produced by: (A) Thermal radiation (B) Stimulated emission of photons (C) Scattering of light (D) Diffraction 10. Laser light can be focused on a: (A) Any random spot (B) Large area only (C) Diffused screen (D) Very small area 11. Which type of laser is commonly used in CD and DVD players? (A) Gas laser (B) Semiconductor laser (C) Dye laser (D) Solid-state laser 12. The wavelength of laser light is: (A) Very narrow (B) Very wide (C) Random (D) Multicolored 13. Which property of laser makes it suitable for communication? (A) Coherence (B) Monochromaticity (C) Directionality (D) High intensity 14. Laser beams are mostly used in: (A) Printing (B) Surgery (C) Scattering light experiments (D) Coloring objects 15. Laser light can produce very high power because it is: (A) Scattered (B) Polychromatic (C) Diffused (D) Highly directional and coherent 16. Laser light is used in holography because it is: (A) Coherent (B) Incoherent (C) Polychromatic (D) Diffused 17. Which property of laser light allows it to cut metal in industry? (A) Directionality (B) Coherence (C) Monochromaticity (D) High intensity 18. Laser light is called “light of one color” due to its: (A) Coherent property (B) Monochromatic property (C) Directional property (D) Intensity 19. Laser light is used in barcode scanners because it is: (A) Polychromatic (B) Scattered (C) Directional and coherent (D) Incoherent 20. Which of the following is NOT a property of laser light? (A) Monochromatic (B) Coherent (C) Polychromatic (D) Directional
