JEE Advanced 2021 Full Test 4 Paper 1

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SECTION – C (Numerical Answer Type)
This section contains 06 questions. The answer to each question is a NUMERICAL VALUE. For each question, enter the correct numerical value (in decimal notation, truncated/rounded-off to the second decimal place; e.g. XXXXX.XX).

Question : 15 of 54

Marks: +1, -0

A 5m long cylindrical steel wire with radius 2×10−3m is suspended vertically from a rigid support and carries a bob of mass 100kg at the other end. Calculate the energy stored in the wire upto two decimal places. (For the steel wire: Young's modulus =2.1×1011‌, density =7860kg−m3.

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