A steel wire is 1m long and $1 m m^{2}$ in area of cross-section. If it takes 200 N to stretch this wire by 1mm how much force will be required to stretch the wire of the same area and of same material having length of 10m to 1002 cm

see full answer

High-Paying Jobs That Even AI Can’t Replace — Through JEE/NEET

🎯 Hear from the experts why preparing for JEE/NEET today sets you up for future-proof, high-income careers tomorrow.

An Intiative by Sri Chaitanya

100 N

200 N

2000 N

400 N

answer is C.

(Unlock A.I Detailed Solution for FREE)

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

$Y = \frac{F L}{A e}$

$F \propto \frac{e}{ℓ} \Rightarrow \frac{F_{1}}{F_{2}} = \frac{e_{1}}{e_{2}} \times \frac{ℓ_{2}}{ℓ_{1}}$

$\frac{200}{F_{2}} = \frac{10^{- 3}}{0.02} \times \frac{10}{1}$

$F_{2} = 400 N$

Watch 3-min video & get full concept clarity

No courses found

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test