youngs module of material of wire is 12.6×10^11 dyne/cm^2.Its value in MKS system is
Answers
Answer:
12.6x10^10.
Explanation:
young's modulus (Y) units are Nm^-2.
So dimensional formula of young's modulus is = ML^(-1) T^(-2).
here using dimension formula powers of young's modulus.
1 dyne/cm^2 = (1gm)(1cm)^-1 (1sec)^-2.
1N/m^2 = (1kg)(1m)^-1(1sec)^-2.
12.6x10^11 dyne/cm^2 = (1gm)x(1cm)^-1 x(1sec)^-2.
1N/m^2 (1kg)x(1m)^-1x(1sec)^-2.
dyne/cm^2 = (1gm) x (1cm)^-1 x (1sec)^-2. .
1N/m^2 (1000g) (100cm)^-1 (1sec)^-2.
dyne/cm^2 = (1) x (1)^-1 .
1N/m^2 (1000) x(100)^-1
dyne/cm^2 = 100
1N/m^2 1000
dyne/cm^2 = 1
1N/m^2 10
1 dyne/cm^2 = 1 N/m^2
10
12x10^11 dyne/cm^2 = ?
- 12x10^10 N/m^2