Question

3.
Two wires of equal cross-sectional area and length
L and 2L are suspended as shown in figure.
Their Young's modulli are Y, and Y, respectively.
The equivalent Young's modulli will be
L
2L
(1)
3YY₂
27, +Y2
3Y,Y₂
(2)
Y+2Y
(3)
Y+Y₂
2
(4)
3Y,Y,
Y, + Y₂
4.
A 5m Al wire (Y​

Answer 1

Y A

k= ____

L

k 1= Y 1 A

_____

L

k 2= Y 2 A

_____

L

k 1 and k2 are in parallel.

k eq= k 1 +k 2

Y eq (2A). A

_______ =(Y 1 + Y 2 )___

L. L

Y 1 +Y 2

Y eq=________

2

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