माना एक तार को किसी छल (दढ़ आधार) से लटकाया गया है तथा इसके मुक्त सिरे से \( W \) भार बाँधकर खी ...

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माना एक तार को किसी छल (दढ़ आधार) से लटकाया गया है तथा इसके मुक्त सिरे से \( W \) भार बाँधकर खी चा जाता है। \( A \) अनुप्रस्थ काट क्षेत्रफल के तार के किसी बिद् पर अनुद्यार्य प्रतिबल है -.
(a) \( 2 \mathrm{~W} / \mathrm{A} \)
(b) \( W / A \)
(c) \( W / 2 A \)
(d) शून्य
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