Verified Solution • 2025–26 Session moderate

QNEET-2023-Ph-325: NEET 2023 Physics - Class 11 NEET-2023-Ph-325 Solution: The amount of elastic potential energy per unit volume (in SI…

The amount of elastic potential energy per unit volume (in SI unit) of a steel wire of length 100 cm to stretch it by 1 mm is (if Young's modulus of the wire = 2.0×1011 Nm−22.0 \times 10^{11}\ \text{Nm}^{-2}): 101110^{11} 101710^{17} 10710^7 10510^5

Multiple Choice Options

  • A 101110^{11} 1 0 11
  • B 101710^{17} 1 0 17
  • C 10710^7 1 0 7
  • D 10510^5 1 0 5

Step-by-Step Verified Solution

 E.P.E   Volume  = 1 2 (  stress)(strain)  = 1 2 ( Y ) (  strain  ) 2 = 1 2 ( Y ) ( _ L L ) 2 = 1 2 ( 2 _ 10 11 ) ( 1 _ 10 _ 3 100 _ 10 _ 2 ) 2 = 10 5

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