Work Done Second Stretching (Jee Mains) | ExamDuo
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Energy & Advanced Elastic Concepts
Hard
Work Done Second Stretching
A string of length ‘L’ and force constant ‘K’ is stretched to obtain extension ‘l’. It is further stretched to obtain extension ‘l₁’. The work done in second stretching is
SELECT ONE OPTION
A
K(2ll₁ + 1²₁)=
1
2
Kl₁(2l + 1₁)
B
1
2
Kl₁(2l + 1₁)
C
1
2
Kl₁(3l + 2₁)
D
1
2
Kl₁(3l - 2₁)
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