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Q. |
In a Laser (say neon laser) all the atoms emit the light waves of – |
A. | Same frequency |
B. | Same amplitude |
C. | Same phase |
D. | All of the above |
Answer» D. All of the above | |
Explanation: In a Laser all the atoms emit the light waves of same frequency, amplitude and phase. A laser is a device that emits light (electromagnetic radiation) through a process of optical amplification based on the stimulated emission of photons. The term "laser" originated as an acronym for Light Amplification by Stimulated Emission of Radiation. |
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