Question

One fermi is equal to 10^-15 metre. The radius of a proton is 1.3 fermi. Write the radius of a proton (in metres) in standard form.

Answer 1

The radius of a proton is 1.3 fermi.

One fermi is equal to 10^-15 m.

So, the radius of the proton is 1.3 x 10^-15 m.

Hence, standard form of radius of the proton is 1.3 x  10^-15 m.