Log In Start studying!
Answers without the blur. Sign up and see all textbooks for free! Illustration

Q.54

Expert-verified
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics
Found in: Page 626

Answers without the blur.

Just sign up for free and you're in.

Illustration

Short Answer

In a simple model of the hydrogen atom, the electron moves in a circular orbit of radius 0.053 nm around a stationary proton. How many revolutions per second does the electron make?

Revolutions made by the electron per second is revolutions/s.

See the step by step solution

Step by Step Solution

Step 1. Given information

A hydrogen atom and the radius of the electron's orbit is 0.053 nm.

Step 2.Formulas used

As the electron and proton are charged an electric force acts. And electron moves in circle around proton so, centripetal force acts.

Therefore,

Electric field,

k is Coulomb constant.

Centripetal force,

m is mass of the electron.

Charge of electron and proton are equal, i.e..

Step 3.Calculation

One revolution will be 2,so the angular velocity will be divided by 2.

So, including formula 2 and 3 in eq1 we get,

Now dividing eq4 by 2 we get,

Step 4.Final answer

revolutions/s.

i.e. revolutions made per second is 6.571015.

Recommended explanations on Physics Textbooks

94% of StudySmarter users get better grades.

Sign up for free
94% of StudySmarter users get better grades.