ध्वमि के परावमतयत होिेपर मिम्नमलस्खत मेंसेकौि सा पररवतयि होता है? a) तरंगिैध्यय b) आवृमत्त c) गमत d) आर्ाम
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c is a right ansuer
Explanation:
pless like me
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