English, asked by chitrachakraborty561, 5 months ago

द इंटेंसिटी ऑफ प्रिंसिपल मैक्सिमम स्पेक्ट्रम ऑपरेटिंग विद ए मेंबर ऑफ लाइन इन प्रोफेशनल दो​

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Answered by mahyekchakraborty1
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Answer:

A laser pointer or laser pen is a small handheld device with a power source ... The output power of a laser pointer is usually stated in milliwatts (mW). In the U.S. lasers are classified by the ..

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