Question

Calculate the fine structure constant ?
write also formula ​

Answer 1

Answer:

The fine structure constant, alpha (α), describes how electromagnetic radiation affects charged particles. It has the numerical value 0.007297351, with an uncertainty of 6 in the last decimal place, and as such is one of the best-measured numbers in physics.

Answer 2

Formula

the fine structure constant is given by

$\alpha = \frac{2\pi \: kz {e}^{2} }{ch}$

We know that

$\pi = 3.14$

k = 9*10^9

Z = 1

e = 1.6*10^-19

C = 3*10^8m/s

h = 6.6*10^-34

Now pitting these value in above equation

$\alpha = \frac{2 \times 3.14 \times 9 \times {10}^{9} \times 1 \times {(1.6 \times {10}^{ - 19}) }^{2} }{3 \times {10}^{8} \times 6.6 \times {10}^{ - 34} } \\ \alpha = \frac{1}{137} \\ \alpha = 0.0073$