manav netra mein retina par bane partibimb ki suchna mastik ko sanchit ki jaati h
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Answer:
drak tantrikao
Explanation:
jab prakash sugrahi koshikay SAKRIYA HO JAATI HAI tatha vidyut signal utpann karti hai .ye signal drak tantrikao dwara mashitshk ko pahuchay jaate hai
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