Question

The ratio of the velocity of the electron in the first orbit to that in the second orbit is ____________.

Options

• 8 : 1

• 4 : 1

• 2 : 1

• 1 : 1

Answer 1

The ratio of the velocity of the electron in the first orbit to that in the second orbit is 2 : 1.

Explanation:

`"v" prop 1/"n"`

`therefore "v"_1/"v"_2 = "n"_2/"n"_1 = 2/1`