किस दर्पण की फोकस दूरी धनात्मक होती है ? kis darpan ki focas duri dhanatmak hoti…
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उत्तल लेंस की फोकस दूरी सदैव होती है – uttla lens ki focus doori sadaiv hoti hai
Q. उत्तल लेंस की फोकस दूरी सदैव होती है – uttla lens ki focus doori sadaiv…
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Class 10th Science question Test , 10th Science Quize, Bihar Board 10th science vvi question, 10th science objective question
Class 10th vvi science objective question, bihar board class 10th science question, class 10th science vvi…
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