which of the following is not a characteristic of laser option a) monochromatic. b)coherent.c)divergent. d)intense
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Answer:
divergent
intense this is not a characteristics of laser
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Divergent is not a characterictics of laser.
Explanation:
- The lasers are highly directional having almost no divergence.
- The output beam of laser has a well-defined wave front due to which it can be focused on a point.
- Lasers are highly intense compared to ordinary light.
- They are monochromatic and coherent.
- The important characteristics of laser radiation is: monochromaticity, directionality and coherence and brightness.
- Monochromaticity means a laser beam is more or less in single wavelength, that is the line width of laser beams are extremely narrow.
- A principle of laser is, it is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation.
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