Question

Please solve it urgently ​

Answer 1

Here is your Answer Mate

$\huge{\mathfrak{Answer}}$

Let

Initial Length = l

Final Length = l'

then ,

L× 1/100 = L/100

L' = L + L/100

L' = 101L/100

L'/L = (1.01)L

then

n = 1.01

R' = (1.01)² R

R' = 1.0202 R

∆R = (1.0201-1)

= 0.0201 × 100

= 2.01 %

___________

∆R = 2 % Ans.

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Hope It will help

Answer 2

$\huge\mathbb{AHOY!!!}$