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Question:
When a weight of 5 kg is suspended from a copper wire of length 30 m and diameter. 0.5 the length of the wire increases by 2.4 cm. If the diameter is doubled the extension produced is

1.1.2 cm

2.0.6 cm

3.0.3 cm

4.0.15 cm

Posted Date:-2021-09-26 06:05:18

More MCQS Questions and answers

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  7. A helical spring extends 40 mm when stretched by a force of 10 N and for tensions up to this value the extension is proportional to the stretching force Two such springs are joined end to-end and the double-length spring is stretched 40 mm beyond its natural length The total strain energy in J stored in the double spring is
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  24. Gita Gobinda the famous poem was written by
  25. Gita Gobinda the famous poem was written by
  26. Gita Gobinda the famous poem was written by
  27. If the work done in stretching a wire by 1 mm is 2 J the work necessary for stretching another wire of same material but with double radius of cross-section and half the length by 1 mm is
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  39. One of the following rulers, who had granted Diwani to the East India Company was
  40. One of the following rulers, who had granted Diwani to the East India Company was
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  45. Question
  46. Question
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  51. The custom Santhara is related to which of the following sects?
  52. The custom Santhara is related to which of the following sects?
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  54. The English East India Company founded a permanent factory at Surat in the year
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  131. Who among the following Sultans of Delhi founded the city of Agra?
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  140. Who is the author of the book �The last Mughal : The fall of a dynasty, Delhi, 1857�?
  141. Who is the author of the book �The last Mughal : The fall of a dynasty, Delhi, 1857�?
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  143. Who of the following has opened that the original homeland of the Aryan was Arctic region?
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  146. Who of the following was the bitterest enemy of the British during the Revolt of 1857?
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  153. Who was the first Governor General of Bengal?
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  158. Who was the founder of Sunyavada?
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  161. Who was the founder of the Sufi order in India?
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  168. Who was the teacher of Gautam Buddha?
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  171. Who were the first Europeans to reach India for trade?
  172. You are given three wires A B and C of the same length and cross-section. They are each stretched by applying the same force to the ends. The wire A is stretched least and comes back to its original length when the stretching force is removed. The wire B is stretched more than A and also comes back to its original length when the stretching force is removed. The wire C is stretched most and remains stretched even when stretching force is removed. The greatest Young s modulus of elasticity is possessed by the material of wireABC
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