Home
Class 11
PHYSICS
The force (F)- extension (lamda) graph s...


The force `(F)`- extension `(lamda)` graph shows that the strain energy stored in the material under test, for an extension of `4mm`, is greater than which of the following values?

A

80 mJ

B

60 mJ

C

40 mJ

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
C
Area under the curve respresents strain
energy stored and it is greater than 40 mj Area under vurve (Straight line)
`=1/2. F.1`
`=1/2.(20)(4xx10^(-3)) J`
=40 mJ
Promotional Banner

Topper's Solved these Questions

  • FLUID MECHANICS

    RESONANCE|Exercise Examples|22 Videos

  • FLUID MECHANICS

    RESONANCE|Exercise Board Level Exercise|18 Videos

  • ELECTROSTATICS

    RESONANCE|Exercise Exercise|52 Videos

  • FULL TEST 1

    RESONANCE|Exercise Exercise|30 Videos

Similar Questions

Explore conceptually related problems

Copper of fixed volume V is drawn into wire of length l. When this wire is subjected to a constant force F, the extension produced in the wire is trianglel . Which of the following graphs is a straight line?

A free electron and a free proton are placed between two oppositely charged parallel plates. Both are closer to the positive plate than the negative plate Which of the following statements is true? I. The force on the proton is greater than the force on the electron. II. The potential energy of the proton is greater than that of the electron. III. The potential energy of the proton and the electron is the same.

(a) A wire 4 m long and 0.3mm in diameter is stretched by a force of 100 N. If extension in the wire is 0.3 mm, calculate the potential energy stored in the wire. (b) Find the work done is stretching a wire of cross-section 1mm^(2) and length 2 m through 0.1 mm. Young's modulus for the material of wire is 2.0xx10^(11) Nm^(-2) .

The line graph shows the exprots by a certain company. Study the diagram and answer the following questions. In which year were the exports greater than that of the previous year?