Home
Class 12
PHYSICS
The stress versus strain graphs for wire...

The stress versus strain graphs for wires of two materials A and B are as shown in the figure. If `Y_(A) and Y_(B)` are the younng's moduli of the materials, then

A

`Y_(A) = Y_(B)`

B

`Y_(B) = 2Y_(A)`

C

`Y_(A) = 2Y_(B)`

D

`Y_(A) = 3Y_(B)`

Text Solution

Verified by Experts

The correct Answer is:
D
`Y = ("Stress")/("strain") = "slope = tan" theta`
`:. (Y_(A))/(Y_(B)) = (tan 60^(@))/(tan 30^(@)) = (sqrt(3))/(1//sqrt(3)) = 3`
Promotional Banner

Topper's Solved these Questions

  • ELASTICITY

    MARVEL PUBLICATION|Exercise Test Your Grasp - 5|15 Videos

  • CURRENT ELECTRICITY

    MARVEL PUBLICATION|Exercise MCQ|151 Videos

  • ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENTS

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP - 16|30 Videos

Similar Questions

Explore conceptually related problems

The stress versus strain graphs for wires of two materials A and B are as shown in the figure. If YA and YB are the Young's moduli of the materials then

The stress- strain graphs for materials A and B are as shown. Choose the correct alternative

The stress and strain graphs for two materials, A and B are shown here. Answer the following: give reasons

The stress versus strain graph for two materials A and B are shown in fig. the graph are on the same scale. ltbr. (a) Which materail has greater Young's modulus? (b) which of the two is stronger materail?

The stress-strain graphs for two materials A and B are shown in the figure. The graphs are drawn to the same scale. (a) Which material has a greater Young's modulus ? (b) Which material is more ductile ? (c) Which material is more brittle? (d) Which of the two is the stronger material ?

The stress-strain graphs for two materials are shown in Fig. 7(EP).3 (assume scale).

The stress-strain graphs for two materials A and are shown in figure. The graphs are drawn to the same scale. Select the correct statement

The strain stress curves of three wires of different materials are shown in the figure. P, Q and R are the elastic limits of the wires. The figure shown that

The load versus elongation graph for four wires of the same material is shown in the figure. The thickest wire is represented by

Materials get deformed when force is applied. Some of them regain their status when the applied force is removed. They are termed as elastic. Those of which not regaining are called plastic. There may be delay in the regaining in some materials. They are said to have got elastic aftereffect, since they have gone beyond the elastic limit. Repeated application and removal of force leads to fatigueness in the material. Fatigued materials may break at any point time and so are avoided. The stress strain graph for two materials A and B is shown in the following figure: The time in which the two materials regain their original status is t_(A) and t_(B) related as t_(B)=2t_(B) . Then the material under elastic aftereffect (relatively) is