Question

Young's modulus of steel is 19*10^10 n/m2 . convert into dyne/cm2

Answer 1

We know that,
1N = 10^5 dyne
1m^2 = 10^4 cm^2
Then,
Young's Modulus of Steel = 19 * 10^10 N/m^2
= 19 * 10^10* 10^5 / 10^4 dyne/cm^2
= 19 * 10^11 dyne /cm^2

Answer 2

Answer:

Y = 1.9 × 10²⁰ dyne/cm²

Explanation:

The Young's modulus is the property of a solid material. It is the ratio of the stress and the strain of a material. The Young's modulus of the steel is 19 × 10¹⁰ N/m². We have to convert it into dyne/cm².

We know that the relationship between dyne and Newton is,

1 Newton = 10⁵ dyne

And also 1 m² = 10⁴ cm²

So, the value of Young's modulus in dyne/cm² will be :

$Y=19\times 10^{10}\times 10^5\times 10^{-4}\ dyne/cm^2$

$Y=1.9\times 10^{12}\ dyne/cm^2$

Hence, this is the required solution.