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Praveen Singh • 27.20K Points
Instructor II Science
25

Q. पानी मे हवा का बुलबुला किस तरह कार्य करता है ?

(A) उत्तल दर्पण
(B) अवतल तरंग
(C) अवतल लेंस
(D) उत्तल लेंस
Correct Answer - Option (C)

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