A thick rope of rubber of density 1.5 
and Young’s modulus 
, 8m in length is hung from the ceiling of a room, the increase in 
its length due to its own weight is
a)
b)
c)
d)
A thick rope of rubber of density 1.5 and Young’s modulus , 8m in length is hung from the ceiling of a room, the increase in its length due to its own weight is
a)
b)
c)
d)
Question ID - 55950 | SaraNextGen Top Answer
A thick rope of rubber of density 1.5 and Young’s modulus , 8m in length is hung from the ceiling of a room, the increase in its length due to its own weight is
a)
b)
c)
d)
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A thick rope of rubber of density 1.5 |
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a) |
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b) |
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c) |
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d) |
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1 Answer
127 votes
Answer Key / Explanation : (a) -
(a)
If 
is the area of cross-section and 
is the length of rope, the mass of rope, 
. As the weight of the rope acts at the mid-point of the rope.
So, 
Or 
m
127 votes
Answer Link
127