Physics And Measurement Question 351

Question: To determine the Young’s modulus of a wire, the formula is Y=FA:LΔL; where L = length, A= area of cross-section of the wire, ΔL= change in length of the wire when stretched with a force F . The conversion factor to change it from CGS to MKS system is

[MP PET 1983]

Options:

A) 1

B) 10

C) 0.1

D) 0.01

Show Answer

Answer:

Correct Answer: C

Solution:

Y=FA.LΔL = dynecm2=105N104m2=0.1N/m2



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