Home
Class 11
PHYSICS
Two wires A and B of same length are mad...

Two wires `A` and `B` of same length are made of same material . The figure represents the load `F` versus extension `Deltax` graph for the wires. Then

A

(A) The cross sectional area of `A` is greater than that of `B`

B

(B) The elasticity of `B` is greater than that of `A`

C

(C) The cross-sectional area of ` B` is greater than that of `A`

D

(D) The elasticity of `A` is greater than that of `B`

Text Solution

Verified by Experts

The correct Answer is:
C
`Deltax = (Fl)/(AY)`
`:. F = ((AY)/(L))Deltax`
i.e `F` versus `Deltax` graph is a straight line of slope `(YA)/(L)`.
`("slope")_(B) gt ("slope" )_(A)`
`:. ((YA)/(L))_(B)gt ((YA)/(L))_(A)`
or ` (A)_(B) gt (A)_(A) `
They are of same material . Hence,
`Y _(B) = Y_(A) `
Promotional Banner

Topper's Solved these Questions

  • ELASTICITY

    DC PANDEY|Exercise Level 2 Comprehension Based|6 Videos

  • ELASTICITY

    DC PANDEY|Exercise Level 2 Subjective|10 Videos

  • ELASTICITY

    DC PANDEY|Exercise Level 2 Single Correct|10 Videos

  • CURRENT ELECTRICITY

    DC PANDEY|Exercise All Questions|434 Videos

  • ELECTROSTATICS

    DC PANDEY|Exercise Integer|17 Videos

Similar Questions

Explore conceptually related problems

Two wires A and B have same lengths and made of the same material but A is thicker than B . Both are subjected to the same extending load. Which will extend more?

Two wires A and B are made of same material and are having same weights. The strain in A will be more when

Two wires A and B are made of same material. The wire A has a length l and diameter r while the wire B has a length l and diameter r while the wire B has a length 2l and diameter r/2. If the two wires are stretched by the same force the elongationn in A divided by the elongation in B is

Two wires A and B have equal lengths and aremade of the same material , but diameter of wire A is twice that of wire B . Then, for a given load,

The following four wires of length L and radius 'r' are made of the same material which of these will have largest extension ?

There are two wires A and B of same mass and of the same material. The diameter of wire A is one-third the diameter of wire B. If the resistance of wire A is 30 Omega , find the resistance of wire B.

Two wires A and B have the same cross section and are made of the same material, but the length of wire A is twice that of B . Then, for a given load

The following four wires of length L and radius r are made of the same material. Which of these will have the largest extension, when the same tension is applied?