Two wires of same material have lengths l and 2l. Their radii are in the ratio 1 : 2. The wires are stretched by the same force. If elongation produced in the second wire is 1 mm, then elongation in the first wire will be
see full answer
Your Exam Success, Personally Taken Care Of
1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.
An Intiative by Sri Chaitanya
a
6 mm
b
4 mm
c
3 mm
d
2 mm
answer is D.
(Unlock A.I Detailed Solution for FREE)
Best Courses for You
JEE
NEET
Foundation JEE
Foundation NEET
CBSE
Detailed Solution
(4)Elongation δ=FlAγ = Flπσ2γ∴ δ1δ2= l1l2r2r12 =12 22 =2∴ δ1= 2δ2 = 2 × 1 mm =2 mm.
Two wires of same material have lengths l and 2l. Their radii are in the ratio 1 : 2. The wires are stretched by the same force. If elongation produced in the second wire is 1 mm, then elongation in the first wire will be