{"id":86805,"date":"2025-06-01T04:21:06","date_gmt":"2025-06-01T04:21:06","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=86805"},"modified":"2025-06-01T04:21:06","modified_gmt":"2025-06-01T04:21:06","slug":"a-copper-rod-of-length-1-m-is-initially-at-room-temperature-if-the-te","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/a-copper-rod-of-length-1-m-is-initially-at-room-temperature-if-the-te\/","title":{"rendered":"A copper rod of length 1 m is initially at room temperature. If the te"},"content":{"rendered":"

A copper rod of length 1 m is initially at room temperature. If the temperature of the rod is increased by 100 \u00b0C, what will be the change in length of the rod? (Given linear thermal expansion coefficient of Cu is 17 x 10\u207b\u2076 \/ \u00b0C)<\/p>\n

[amp_mcq option1=”0.17 mm” option2=”1.7 mm” option3=”0.17 cm” option4=”1.7 cm” correct=”option2″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC Geoscientist – 2021<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nThe change in length of the copper rod will be 1.7 mm.
\n<\/section>\n
\nThe change in length due to thermal expansion is given by the formula \u0394L = L\u2080 * \u03b1 * \u0394T.
\n<\/section>\n
\nGiven: L\u2080 = 1 m = 1000 mm, \u03b1 = 17 x 10\u207b\u2076 \/ \u00b0C, \u0394T = 100 \u00b0C.
\n\u0394L = 1000 mm * (17 x 10\u207b\u2076 \/ \u00b0C) * 100 \u00b0C
\n\u0394L = 1000 * 17 * 10\u207b\u2076 * 100 mm
\n\u0394L = 1700000 x 10\u207b\u2076 mm
\n\u0394L = 1.7 mm.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

A copper rod of length 1 m is initially at room temperature. If the temperature of the rod is increased by 100 \u00b0C, what will be the change in length of the rod? (Given linear thermal expansion coefficient of Cu is 17 x 10\u207b\u2076 \/ \u00b0C) [amp_mcq option1=”0.17 mm” option2=”1.7 mm” option3=”0.17 cm” option4=”1.7 cm” … <\/p>\n

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