Question

6.28 में, x और y के मान ज्ञात कीजिए और
फर दर्शाइए कि ABITCD है।
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Answer 1

Answer:

ask in english plz

Step-by-step explanation:

A laser is created when the electrons in atoms in special glasses, crystals, or gases absorb energy from an electrical current or another laser and become “excited.” The excited electrons move from a lower-energy orbit to a higher-energy orbit around the atom's nucleus. ... Second, laser light is directional.