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नीचे दिये गये प्रश्न के लिए अनुच्छेद


A uniform rod of mass ‘m’ and length ‘L’ is hung with one end hinged while other end supported with a string as shown in the figure. Answer the following questions.

m’ द्रव्यमान व ‘L’ लम्बाई की एक समरूप छड़ को चित्र में दर्शाए अनुसार इस प्रकार लटकाया जाता है कि इसका एक सिरा कीलकित हो जबकि दूसरा सिरा डोरी द्वारा आधारित हो। निम्नलिखित प्रश्नों के उत्तर दीजिए।

Q. The reaction force by hinge, applied on rod, just after cutting the string will be

प्रश्न - डोरी को काटने के ठीक बाद कीलक द्वारा छड़ पर आरोपित प्रतिक्रिया बल होगा


A
mg
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B
mg4
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C
mg2
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D
Zero (शून्य)
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Solution

The correct option is B mg4
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